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It encompasses several different aspects, including webpage layout, content production, and graphic design. While the terms web design and web development are often used interchangeably, web design is technically a subset of the broader category of web development.\r\nWebsites are created using a markup language called HTML. Web designers build webpages using HTML tags that define the content and metadata of each page. The layout and appearance of the elements within a webpage are typically defined using CSS, or cascading style sheets. Therefore, most websites include a combination of HTML and CSS that defines how each page will appear in a browser.\r\nSome web designers prefer to hand code pages (typing HTML and CSS from scratch), while others use a &quot;WYSIWYG&quot; editor like Adobe Dreamweaver. This type of editor provides a visual interface for designing the webpage layout and the software automatically generates the corresponding HTML and CSS code. Another popular way to design websites is with a content management system like WordPress or Joomla. These services provide different website templates that can be used as a starting point for a new website. Webmasters can then add content and customize the layout using a web-based interface.\r\nWhile HTML and CSS are used to design the look and feel of a website, images must be created separately. Therefore, graphic design may overlap with web design, since graphic designers often create images for use on the Web. Some graphics programs like Adobe Photoshop even include a &quot;Save for Web…&quot; option that provides an easy way to export images in a format optimized for web publishing.","materialsDescription":" <span style=\"font-weight: bold;\">Why is Web Design Important?</span>\r\nIt can be difficult to understand why most businesses are willing to pay top dollar for web design work. After all, having a functional website matters more than how it looks, right? 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This means that businesses need to take advantage of this new set of customers by creating websites that can get clients who are away from their computers.\r\n<span style=\"font-weight: bold;\">Websites Help in Business Branding</span>\r\nA poor looking website will damage the brand of any company while a scummy-looking website drives customers away. However, an elegant website will help people to connect with a business’s branding. A website with a user-friendly page tends to attract clients more to businesses.","iconURL":"https://old.roi4cio.com/fileadmin/user_upload/icon_Website_Design.png","alias":"website-design"},"605":{"id":605,"title":"Java Development","description":" Java is a general-purpose programming language that is class-based, object-oriented, and designed to have as few implementation dependencies as possible. It is intended to let application developers write once, run anywhere (WORA), meaning that compiled Java code can run on all platforms that support Java without the need for recompilation. Java applications are typically compiled to bytecode that can run on any Java virtual machine (JVM) regardless of the underlying computer architecture. The syntax of Java is similar to C and C++, but it has fewer low-level facilities than either of them. As of 2019, Java was one of the most popular programming languages in use according to GitHub, particularly for client-server web applications, with a reported 9 million developers.\r\nJava was originally developed by James Gosling at Sun Microsystems (which has since been acquired by Oracle) and released in 1995 as a core component of Sun Microsystems' Java platform. The original and reference implementation Java compilers, virtual machines, and class libraries were originally released by Sun under proprietary licenses. As of May 2007, in compliance with the specifications of the Java Community Process, Sun had relicensed most of its Java technologies under the GNU General Public License. Meanwhile, others have developed alternative implementations of these Sun technologies, such as the GNU Compiler for Java (bytecode compiler), GNU Classpath (standard libraries), and IcedTea-Web (browser plugin for applets).\r\nThe latest versions are Java 13, released in September 2019, and Java 11, a currently supported long-term support (LTS) version, released on September 25, 2018; Oracle released for the legacy Java 8 LTS the last free public update in January 2019 for commercial use, while it will otherwise still support Java 8 with public updates for personal use up to at least December 2020. Oracle (and others) highly recommend uninstalling older versions of Java because of serious risks due to unresolved security issues. Since Java 9 (and 10 and 12) is no longer supported, Oracle advises its users to immediately transition to the latest version (currently Java 13) or an LTS release.","materialsDescription":"<span style=\"font-weight: bold; \">What is Java technology and what is its application?</span>\r\nJava is a programming language and computing platform that was first launched by Sun Microsystems in 1995. There are many applications and websites that do not work when Java is not installed, and the number of such websites and applications is increasing every day. Java is fast, highly secure, and reliable. From laptops to data centers, from game consoles to supercomputers used for scientific research, from cell phones to the Internet - Java is everywhere!\r\n<span style=\"font-weight: bold;\">What is the performance of Java?</span>\r\nPrograms written in Java have a reputation for being slower and taking up more RAM than those written in C. Nevertheless, the speed of execution of programs written in Java has been significantly improved with the release of the so-called JIT compiler in 1997-1998. in version 1.1, in addition to other language features to support better code analysis (such as inner classes, StringBuffer class, simplified logic calculations, and so on). In addition, the Java virtual machine was optimized - since 2000, the HotSpot virtual machine has been used for this. As of February 2012, Java 7 code is approximately 1.8 times slower than C code.\r\nSome platforms offer hardware runtime support for Java. For example, microcontrollers that run Java code on hardware instead of software JVMs, as well as ARM-based processors that support Java bytecode through the Jazelle option.\r\n<span style=\"font-weight: bold;\">What are the main features of Java?</span>\r\n<ul><li>Automatic memory management.</li><li>Advanced exception handling capabilities.</li><li>A rich set of I/O filtering tools.</li><li>A set of standard collections: array, list, stack, etc.</li><li>The presence of simple tools for creating network applications (including using the RMI protocol).</li><li>The presence of classes that allow you to perform HTTP requests and process responses.</li><li>Built-in language tools for creating multi-threaded applications, which were then ported to many languages ​​(for example, Python).</li><li>Unified access to databases: at the level of individual SQL queries - based on JDBC, SQLJ; at the level of the concept of objects with the ability to store in the database - based on Java Data Objects (English) and Java Persistence API.</li><li>Generalization support (since version 1.5).</li><li>Support for lambdas, closures, built-in functional programming features.</li></ul>","iconURL":"https://old.roi4cio.com/fileadmin/user_upload/icon_Java_Development.png","alias":"java-development"},"607":{"id":607,"title":"C/C++ Development","description":" C++ is a general-purpose object-oriented programming (OOP) language, developed by Bjarne Stroustrup, and is an extension of the C language. It is therefore possible to code C++ in a &quot;C style&quot; or &quot;object-oriented style.&quot; In certain scenarios, it can be coded in either way and is thus an effective example of a hybrid language.\r\nC++ is considered to be an intermediate-level language, as it encapsulates both high- and low-level language features. Initially, the language was called &quot;C with classes&quot; as it had all the properties of the C language with an additional concept of &quot;classes.&quot; However, it was renamed C++ in 1983.\r\nC++ is one of the most popular languages primarily utilized with system/application software, drivers, client-server applications and embedded firmware.\r\nThe main highlight of C++ is a collection of predefined classes, which are data types that can be instantiated multiple times. The language also facilitates declaration of user-defined classes. Classes can further accommodate member functions to implement specific functionality. Multiple objects of a particular class can be defined to implement the functions within the class. Objects can be defined as instances created at run time. These classes can also be inherited by other new classes which take in the public and protected functionalities by default.\r\nC++ includes several operators such as comparison, arithmetic, bit manipulation and logical operators. One of the most attractive features of C++ is that it enables the overloading of certain operators such as addition.\r\nA few of the essential concepts within the C++ programming language include polymorphism, virtual and friend functions, templates, namespaces and pointers.","materialsDescription":"<span style=\"font-weight: bold; \"> Bjarne Stroustrup's FAQ</span>\r\n<span style=\"font-weight: bold; \">C is better than C++ for small projects, right?</span>\r\nNot in my opinion. I never saw a project for which C was better than C++ for any reason but the lack of a good C++ compiler.\r\n<span style=\"font-weight: bold; \">Is C a subset of C++?</span>\r\nIn the strict mathematical sense, C isn't a subset of C++. There are programs that are valid C but not valid C++ and even a few ways of writing code that has a different meaning in C and C++. However, C++ supports every programming technique supported by C. Every C program can be written in essentially the same way in C++ with the same run-time and space efficiency. It is not uncommon to be able to convert tens of thousands of lines of ANSI C to C-style C++ in a few hours. Thus, C++ is as much a superset of ANSI C as ANSI C is a superset of K&amp;R C and much as ISO C++ is a superset of C++ as it existed in 1985.\r\n<span style=\"font-weight: bold; \">What is the difference between C and C++?</span>\r\nC++ is a direct descendant of C that retains almost all of C as a subset. C++ provides stronger type checking than C and directly supports a wider range of programming styles than C. C++ is &quot;a better C&quot; in the sense that it supports the styles of programming done using C with better type checking and more notational support (without loss of efficiency). In the same sense, ANSI C is a better C than K&amp;R C. In addition, C++ supports data abstraction, object-oriented programming, and generic programming (see my books).\r\nI have never seen a program that could be expressed better in C than in C++ (and I don't think such a program could exist - every construct in C has an obvious C++ equivalent). However, there still exist a few environments where the support for C++ is so weak that there is an advantage to using C instead.\r\n<span style=\"font-weight: bold; \">Do you really think that C and C++ could be merged into a single language?</span>\r\nI think that it would be a very good thing for the C/C++ community if they were. That is, if the C/C++ incompatibilities were systematically and completely eliminated and that future evolution was organized so as to prevent new incompatibilities from emerging. Whether that's possible is another matter.\r\nMy basic point is that the current C/C++ incompatibilities are &quot;accidents of history&quot; that have no fundamental reasons behind them (though they all &quot;looked like a good idea at the time&quot; to some competent and well-meaning people). The C/C++ incompatibilities provide no benefits to the community at large, cause serious problems to a large section of the C/C++ community, and could - with great difficulty - be eliminated.\r\nFor a far more detailed presentation of my views on C/C++ compatibility, see the series of papers I wrote about this:\r\n<ul><li>B. Stroustrup: C and C++: Case Studies in Compatibility. The C/C++ Users Journal. September 2002.</li><li>B. Stroustrup: C and C++: A Case for Compatibility. The C/C++ Users Journal. August 2002.</li><li>B. Stroustrup: C and C++: Siblings. The C/C++ Users Journal. July 2002.</li><li>B. Stroustrup: Sibling rivalry: C and C++. AT&amp;T Labs - Research Technical Report. TD-54MQZY. January 2002. </li></ul>\r\nI imagine that if incompatibilities were eliminated (by making changes to both C and C++), there would still be entities called C and C++, but then C really would be defined as a subset of C++.\r\n<span style=\"font-weight: bold; \">Why did you make C++ (almost) compatible with C?</span>\r\nI wanted C++ to be compatible with a complete language with sufficient performance and flexibility for even the most demanding systems programming.\r\nAt the time, I considered C the best systems programming language available. That was not as obvious then (1979) as it later became, but I had experts such as Dennis Ritchie, Steve Johnson, Sandy Fraser, Greg Chesson, Doug McIlroy, and Brian Kernighan down the corridor from whom I could learn and get feedback. Without their help and advice, and without C, C++ would have been stillborn.\r\nContrary to repeated rumors, I was never told that I had to use C; nor was I ever told not to use C. In fact, the first C++ manual grew from troff source of the C manual that Dennis gave me. Many new languages were designed at Bell labs; in &quot;Research&quot; at least, there were no rules enforcing language bigotry.\r\n<span style=\"font-weight: bold; \">What do you think of C/C++?</span>\r\nNo that's not really a question I often get. In that sense, it is the only &quot;fake FAQ&quot; in this FAQ. However, it ought to be a FAQ because people use &quot;C/C++&quot; as if it meant something specific and as if they knew what it meant, leading to much confusion and misery. People should ask &quot;What is C/C++?&quot; and then on reflection stop using the term. It does harm.\r\nThere is no language called &quot;C/C++&quot;. The phrase is usually used by people who don't have a clue about programming (e.g. HR personnel and poor managers). Alternatively, it's used by people who simple do not know C++ (and often not C either). When used by programmers, it typically indicates a &quot;C++ is C with a few useful and a lot of useless complicated features added&quot; attitude. Often, that is the point of view of people who like to write their own strings and hash tables with little knowledge of the standard library beyond printf and memcpy. There are people who stick to a restricted subset of C++ for perfectly good reasons, but they (as far as I have noticed) are not the people who say &quot;C/C++&quot;.\r\nI use C/C++ only in phrases such as &quot;C/C++ compatibility&quot; and &quot;C/C++ community&quot;.\r\n<span style=\"font-weight: bold;\">When was C++ invented?</span>\r\nI started work on what became C++ in 1979. The initial version was called &quot;C with Classes&quot;. The first version of C++ was used internally in AT&amp;T in August 1983. The name &quot;C++&quot; was used late that year. The first commercial implementation was released October 1985 at the same time as the publication of the 1st edition of The C++ Programming Language. Templates and exception handling were included later in the 1980's and documented in The Annotated C++ Reference Manual and The C++ Programming Language (2rd Edition). The first ISO C++ standard was C++98 as described in The C++ Programming Language (3rd Edition).\r\nThe current definition of C++ The 2011 ISO C++ Standard described in The C++ Programming Language (4th Edition).\r\nYou can find a more complete timeline and more detailed explanations in The Design and Evolution of C++ and A History of C++: 1979-1991 and Evolving a language in and for the real world: C++ 19.","iconURL":"https://old.roi4cio.com/fileadmin/user_upload/icon_C_C_Development.png","alias":"cc-development"},"609":{"id":609,"title":".Net Development","description":" .NET Framework is a software framework developed by Microsoft that runs primarily on Microsoft Windows. It includes a large class library named Framework Class Library (FCL) and provides language interoperability (each language can use code written in other languages) across several programming languages. Programs written for .NET Framework execute in a software environment (in contrast to a hardware environment) named Common Language Runtime (CLR), an application virtual machine that provides services such as security, memory management, and exception handling. As such, computer code written using .NET Framework is called &quot;managed code&quot;. FCL and CLR together constitute the .NET Framework.\r\nFCL provides user interface, data access, database connectivity, cryptography, web application development, numeric algorithms, and network communications. Programmers produce software by combining their source code with .NET Framework and other libraries. The framework is intended to be used by most new applications created for the Windows platform. Microsoft also produces an integrated development environment largely for .NET software called Visual Studio.\r\n.NET Framework began as proprietary software, although the firm worked to standardize the software stack almost immediately, even before its first release. Despite the standardization efforts, developers, mainly those in the free and open-source software communities, expressed their unease with the selected terms and the prospects of any free and open-source implementation, especially regarding software patents. Since then, Microsoft has changed .NET development to more closely follow a contemporary model of a community-developed software project, including issuing an update to its patent promising to address the concerns.\r\n.NET Framework led to a family of .NET platforms targeting mobile computing, embedded devices, alternative operating systems, and web browser plug-ins. A reduced version of the framework, .NET Compact Framework, is available on Windows CE platforms, including Windows Mobile devices such as smartphones. .NET Micro Framework is targeted at very resource-constrained embedded devices. Silverlight was available as a web browser plugin. Mono is available for many operating systems and is customized into popular smartphone operating systems (Android and iOS) and game engines. .NET Core targets the Universal Windows Platform (UWP), and cross-platform and cloud computing workloads.","materialsDescription":"When Microsoft formally introduced its .NET strategy in mid-2000, analysts were confused about how the company would pull off such a massive platform shift. Over two years later, they're still wondering. But .NET isn't vaporware, and it's not a pipe dream. In fact, .NET is happening today.\r\n<span style=\"font-weight: bold; \">What is .NET?</span>\r\nActually, .NET is many things, but primarily it's a marketing term for a set of products and technologies that Microsoft is creating to move personal and enterprise computing beyond the PC desktop and into a distributed Internet-based environment. So .NET--which was originally called Next Generation Windows Services (NGWS)--is also a platform, one that Microsoft sees as the successor to Windows. The .NET platform is based on Web services which are, in turn, defined by a language called XML.\r\n<span style=\"font-weight: bold; \">What is XML?</span>\r\nXML--the eXtensible Markup Language--is a self-descriptive, data definition language. It's structure is similar to HTML, the language of the Web, but it's far more powerful because it's not limited to a static list of language constructs (&quot;tags&quot;) that the language's authors supply. Instead, XML is extensible and dynamic: Programmers can define new types of data using XML and then describe that data so that others will know how to use it.\r\n<span style=\"font-weight: bold; \">What are Web services?</span>\r\nWeb services are functions exposed by server-side applications. They are programmable units that other applications (and Web services) can access over the Internet.\r\n<span style=\"font-weight: bold; \">Does .NET require Windows?</span>\r\nTechnically, no, but realistically, yes. It's possible the .NET platform could be ported to other operating systems, such as Linux, FreeBSD, the Macintosh, or whatever, and indeed, some work is being done now in this area. However, .NET very much requires Windows today, on both the server and the client. One might say that .NET and Windows have a symbiotic relationship going forward.\r\n<span style=\"font-weight: bold; \">Is .NET is being ported to Linux?</span>\r\nYes. A company called Ximian is porting the standards-based parts of .NET to Linux as you read this, and the work is amazingly far along. Code-named Mono, this project seeks to bring the C# programming language, the Common Language Runtime (CLR, see below), and other .NET features to Linux.\r\nOn a related note, Microsoft has contracted Corel (makers of CorelDRAW and Word Perfect) to port .NET to FreeBSD.\r\n<span style=\"font-weight: bold; \">Isn't .NET just another name for COM, COM+, Windows DNA, or some other previous Windows technology?</span>\r\nActually, no. Microsoft spent considerable time and effort developing and promoting a set of Windows technologies that was at various times called OLE, COM, COM+, and Windows DNA (Distributed InterNet Architecture) but .NET is not the next iteration. Windows DNA, which was the final umbrella term for this set of technologies, was based around a concept where Windows-based software components could expose their services for other local and remote Windows software components. But though this sounds passingly similar to .NET, Windows DNA is very much based on proprietary Windows technologies. By comparison, .NET is based on open standards (XML and various related technologies), so it will be much easier for other vendors to adopt the platform and write compatible software. So we can eventually expect to see .NET clients and servers on platforms other than Windows.\r\n<span style=\"font-weight: bold; \">So what technologies are part of .NET?</span>\r\n.NET is comprised of several related technologies, including:\r\n<span style=\"font-style: italic; \"><span style=\"font-weight: bold; \">.NET Framework</span></span> - A runtime environment and set of standard services which .NET capable applications and services can utilize. Implemented as a code library, the .NET Framework includes the Common Language Runtime (CLR), the .NET run-time environment; ASP .NET, a Web applications platform; and ADO .NET, for data store access.\r\n<span style=\"font-style: italic; \"><span style=\"font-weight: bold; \">.NET Compact Framework</span></span> - A subset of the .NET Framework designed for Pocket PCs, Microsoft Smart Phones, and other Windows CE .NET-based mobile devices.\r\n<span style=\"font-style: italic; \"><span style=\"font-weight: bold; \">MSN consumer services</span></span> - Microsoft will use its consumer-oriented MSN online service to expose Web services to individuals. The current version, MSN 8, includes the .NET Passport's authentication services, email, address book, calendaring and tasks, and other similar services.\r\n<span style=\"font-style: italic; \"><span style=\"font-weight: bold; \">.NET Enterprise Servers</span></span> - An extensive set of Microsoft server software that runs on Windows servers, including Application Server, BizTalk Server, Exchange Server, Host Integration Server, Internet Security and Acceleration Server, SQL Server, and many others. Microsoft is currently shipping many such server products, but they are all based on Windows DNA currently, not .NET. Future server products--beginning with Windows .NET Server 2003, due in April 2003--will actually be based on .NET technologies for the first time.\r\n<span style=\"font-style: italic; \"><span style=\"font-weight: bold; \">Visual Studio .NET</span></span> - Microsoft's .NET development environment, with support for languages such as Visual Basic .NET, Visual C++ .NET, Visual C# .NET, and Visual J#, which all target the .NET Framework. Other vendors can add other language capabilities to Visual Studio .NET, and the suite can be used to target a wide range of applications and services, including .NET Web services, Windows applications, and Web applications. Note that Visual Studio .NET is not required to create .NET applications and services: Developers can download the .NET Framework for free; this download includes compilers for Visual Basic .NET, Visual C++ .NET and Visual C# .NET.\r\n<span style=\"font-weight: bold;\">OK, so what's the point? How does this make my life better?</span>\r\nWith apologies to Microsoft for stealing the term, .NET enables a better PC ecosystem. That is, by making life easier for everyone involved with PCs, the benefits are cross-pollinated. Here's how .NET makes life easier on various groups:\r\n<span style=\"font-style: italic;\"><span style=\"font-weight: bold;\">Programmers</span></span> - Because developers now have a consistent, language-neutral programming environment, they can create better applications and services more quickly. And because .NET encompasses such a wider range of functionality, those applications and services can be connected to back-end services via the Internet, offering better, and more exciting functionality.\r\n<span style=\"font-style: italic;\"><span style=\"font-weight: bold;\">IT administrators</span></span> - Because .NET applications and services do away with the &quot;DLL Hell&quot; found in previous Windows applications, they are amazingly easy to distribute and install.\r\n<span style=\"font-style: italic;\"><span style=\"font-weight: bold;\">End users</span></span> - For the reasons listed above, and many others, a new generation of .NET applications and services will provide new types of connected functionality. Access your email from anywhere. Pay for products online without typing in your credit card information. Access weather, traffic, music, and other personal information from a variety of devices, from anywhere in the world. The future is all connected, and .NET will get us there.","iconURL":"https://old.roi4cio.com/fileadmin/user_upload/icon_Net_Development.png","alias":"net-development"},"611":{"id":611,"title":"ObjectiveC Development","description":"Objective-C is a general-purpose, object-oriented programming language that adds Smalltalk-style messaging to the C programming language. It was the main programming language supported by Apple for the macOS, iOS and iPadOS operating systems, and their respective application programming interfaces (APIs) Cocoa and Cocoa Touch until the introduction of Swift in 2014.\r\nThe language was originally developed in the early 1980s. It was later selected as the main language used by NeXT for its NeXTSTEP operating system, from which macOS and iOS are derived. Portable Objective-C programs that do not use Apple libraries, or those using parts that may be ported or reimplemented for other systems, can also be compiled for any system supported by GNU Compiler Collection (GCC) or Clang.\r\nObjective-C source code 'implementation' program files usually have .m filename extensions, while Objective-C 'header/interface' files have .h extensions, the same as C header files. Objective-C++ files are denoted with a .mm file extension.\r\nObjective-C was invented in the early 1980s as a means to add Object-Oriented programming capabilities to C. The inventors, Brad Cox and Tom Love, thought that Smalltalk (an early OO language) could provide the tools needed for truly re-usable code and for creating development environments for systems developers.\r\nCox began by writing a pre-processor for C that allowed for the inclusion of Smalltalk-like code, which would then be rendered into compilable C. This turned into a fully-Object-Oriented C extension.\r\nObjective-C was eventually fully defined and described in the book Object-Oriented Programming: An Evolutionary Approach.\r\nNeXT licensed Objective-C in 1988 and developed several tools based on it. These tools eventually became (after several intermediate steps) the Cocoa development environment, which is used by several Apple systems: Mac OS X, iOS, Apple WatchOS.\r\nFor several years now, apps are written for one of these Apple operating systems needed to be written (or compiled to, or run on top of) Objective-C. That situation is changing now as Apple moves its platform to Swift.\r\nIn addition to Cocoa, Objective-C is also used in the GNUstep platform, which can run on Linux, Unix, BSD, and Windows environment, and which closely mirrors Cocoa.","materialsDescription":" <span style=\"font-weight: bold;\">What is Objective-C?</span>\r\nObjective-C is a general-purpose, object-oriented programming language that adds Smalltalk-style messaging to the C programming language. This is the main programming language used by Apple for the OS X and iOS operating systems and their respective APIs, Cocoa and Cocoa Touch. This reference will take you through a simple and practical approach while learning Objective-C Programming language.\r\n<span style=\"font-weight: bold;\">What is OOP?</span>\r\nOOP means Object Oriented Programming; it is a type of programming technique that helps to manage a set of objects in a system.&nbsp; With the help of various programming languages, this method helps to develop several computer programs and applications.\r\n<span style=\"font-weight: bold;\">What Objective-C program consists of?</span>\r\nThe objective-c program basically consists of:\r\n<ul><li>Preprocessor commands</li><li>Interface</li><li>Implementation</li><li>Method</li><li>Variables</li><li>Statements &amp; Expressions</li><li>Comments</li></ul>","iconURL":"https://old.roi4cio.com/fileadmin/user_upload/icon_ObjectiveC_Development.png","alias":"objectivec-development"},"613":{"id":613,"title":"C# Development","description":" C#, (C-Sharp) is a programming language that combines object-oriented and aspect-oriented concepts. Developed in 1998–2001 by a group of engineers under the leadership of Anders Hejlsberg at Microsoft as the main language for developing applications for the Microsoft .NET platform. The compiler with C# is included in the standard installation of the .NET itself, so programs on it can be created and compiled even without tools like Visual Studio.\r\nC# refers to a family of languages ​​with a C-like syntax, of which its syntax is closest to C++ and Java. The language has strict static typing, supports polymorphism, operator overloading, pointers to member functions of classes, attributes, events, properties, exceptions, comments in XML format. Having taken a lot from their predecessors - C++, Java, Delphi, Modula and Smalltalk - C#, based on the practice of using them, excludes some models that have proven to be problematic when developing software systems: thus, C # does not support multiple class inheritance (unlike C ++).\r\nC# was developed as an application level programming language for the CLR and, as such, depends primarily on the capabilities of the CLR itself. This concerns, first of all, the C # type system, which reflects FCL. The presence or absence of certain expressive features of the language is dictated by whether a particular language feature can be translated into the corresponding CLR constructs. So, with the development of the CLR from version 1.1 to 2.0, C # itself was significantly enriched; similar interaction should be expected in the future. (However, this pattern was broken with the release of C # 3.0, which are language extensions that do not rely on .NET platform extensions.) The CLR provides C #, like all other .NET-oriented languages, many of the features that the “classical” programming languages ​​lack. For example, garbage collection is not implemented in C # itself, but the CLR is done for programs written in C # just like it is done for programs on VB.NET, J #, and others.","materialsDescription":"<span style=\"font-weight: bold;\"> Why is it necessary to study the C# programming language?</span>\r\n<span style=\"font-weight: bold;\">Reason # 1. Language program C# develops.</span>\r\nNew programming languages ​​appear annually. And the main demand is expanding and progressing. Since the C# programming language was created and accompanied by Microsoft, this technological “hippopotamus” periodically makes improvable with the addition of useful functions in C #, and you can be sure that it will perform many, many iterations ... Also, billions of lines of code are written all over the world not only under Microsoft, so the work is foreseen to everyone who wants to learn the C # programming language.\r\n<span style=\"font-weight: bold;\">Reason # 2. Your bright future with C#.</span>\r\nThis item smoothly continues the previous one. According to the ratings of the domestic DOU, it is clear that the C# programming language in Ukraine is in 3rd place in 2018 among programming languages. And in the world charts on the 4th place by PYPL PopularitY of Programming Language is a rating using Google Trends.\r\n<span style=\"font-weight: bold;\">Reason # 3. The possibility of greater profits.</span>\r\nOf course, this statement should be evaluated relatively by comparison. Today they like to say: “A programmer’s working time is more expensive than additional memory or a more powerful computer processor. It is recommended to choose more modern tools that don’t over-brain a programmer.”\r\nOn the other hand, when they talk about C#, they always mean speed and large, valuable, serious projects, even Megaprojects. For example, in C#, the Linux kernel, Unix, libraries, environment, interpreters of many modern programming languages ​​are written.\r\n<span style=\"font-weight: bold;\">Reason # 4. C# has a huge set of use cases.</span>\r\n<ul><li>The C # programming language is mainly used to create corporate software, financial projects, for example, for banks and stock exchanges, in particular, mobile applications, cloud services.</li><li>Compared to Java, C# interacts more easily with code written in other languages. And it is precisely in C# that extensions are often written for other programming languages ​​used as a layer between the C # library and the language, the possibilities of which are planned to be extended for specific purposes.</li><li>A pretty popular blockchain in C#.</li><li>C# is widely used in developing games on Unity. Have you ever heard of Unity? Unity is a popular game engine. This means that hundreds of thousands of games, including the most popular, were created using C#.</li><li>C# is good for working with iron, the so-called embedded. Asking what is embedded technology? Embedded system - a specialized computer system or computing device designed to perform a limited number of functions, from Wikipedia: traffic lights, cash registers, vending machines, set-top boxes, test equipment, etc.</li><li>The popular C# programming language is equally good for IoT. Again, what is IoT? IoT (Internet of Things) is a concept of a comprehensive Internet, Internet connection of refrigerators, air conditioners, cars and even sneakers with the aim of providing its owner with greater comfort, and on the other hand increasing their retailers' profits, calculating the amount of what, how much and when availability in warehouses, obtaining certain information about a person and his habits, about the environment.</li><li>Science and its application, for example, conducting complex experimental calculations, cryptography, pattern recognition, and the like.</li></ul>\r\n<span style=\"font-weight: bold;\">Reason # 5. C# is strongly typed, so it is easier for them to master beginners</span>\r\nAs for the comparison of programming languages, it should be noted that the C# programming language is multi-level. This means that it is somewhat similar to English. The C# programming language has strong static typing, supports polymorphism, operator overloading, pointers to member functions of classes, attributes, events, properties, exceptions, comments in XML format. Having adopted a lot from their predecessors - C++, Delphi, Modula, Smalltalk - in C #, relying on the practice of using them, deliberately excluded some models that proved to be problematic when developing software systems in the above-mentioned programming languages.\r\nThe syntax is quite minimalistic - with manual memory management. This is inconvenient for many, but tracking the correctness of functions, understanding the transmission of arguments is closely related to the study of the C# programming language.\r\nSince the syntax of C# is close to C, C++ and Java, then, fluent in C #, you can later learn them in one breath.","iconURL":"https://old.roi4cio.com/fileadmin/user_upload/icon_C_Development.png","alias":"c-development"},"617":{"id":617,"title":"Joomla Development","description":"Joomla is a free and open-source content management system (CMS) for publishing web content, developed by Open Source Matters, Inc. It is built on a model–view–controller web application framework that can be used independently of the CMS.\r\nJoomla is written in PHP, uses object-oriented programming techniques (since version 1.5) and software design patterns, stores data in a MySQL, MS SQL (since version 2.5), or PostgreSQL (since version 3.0) database, and includes features such as page caching, RSS feeds, printable versions of pages, news flashes, blogs, search, and support for language internationalization.\r\nOver 8,000 free and commercial extensions are available from the official Joomla Extensions Directory, and more are available from other sources. As of 2019, it was estimated to be the fourth most used content management system on the Internet, after WordPress and Drupal.\r\nJoomla has thousands of verified third party extensions which can be found on the Joomla Extensions Directory - extensions.joomla.org. There are also thousands of high end templates available, many of which are free. Paid templates are also available and come with support. Many templates provide a graphical user interface which allow you to change colors, fonts, layouts and features. Joomla has SEO tools built in. Includes Metadata and Keywords, Mod_rewrite support for SEF URLs and Menu creation for clear and consistent sitemaps.\r\n<ul><li>Multilingual: Offering over 75 languages.</li><li>Search Engine Optimization: Out of the box SEO &amp; SEF.</li><li>Flexible: Make a blog, business website, intranet, community website… From the simplest to the most complex website.</li><li>Free: Joomla is free to use under GPL.</li><li>Extendable: Extensions are available to extend website functionality.</li><li>User Management: Access Control Lists allow management of the users of a website, and different groups.</li><li>Menu management: Create as many menus and menu items as you need.</li><li>Cache management: Caching for performance.</li></ul>","materialsDescription":" <span style=\"font-weight: bold; \">What is Joomla?</span>\r\nJoomla has been on the web since 2005 and has gained a massive number of users; over 50 million downloads according to www.joomla.org. It makes this CMS (content management system) the second most popular after WordPress.\r\n<span style=\"font-weight: bold; \">What are the key features of Joomla?</span>\r\n<span style=\"font-style: italic; \"><span style=\"font-weight: bold; \">Responsive.</span></span> Responsiveness is a “must have” for any up-to-date website. You, as well as almost every other Internet user today, expect the website to scale gracefully to any screen resolution and that is what Joomla is totally capable of doing.\r\nMobile devices, desktops, tablets - your website is not going to look “broken” on any of them.\r\n<span style=\"font-style: italic; \"><span style=\"font-weight: bold; \">Multilingual.</span></span> Do you operate in a non-English market? No problemo. Localizing the Joomla engine to your language is easier than it is with most of its competitors in the CMS world.\r\nThere are almost 70 language packs in Joomla which are just several clicks away from being installed and used.\r\nEven if a theme you use has some words that aren’t translatable with the language pack, you can translate the rest of them in a language override tool. This is great because in some other popular CMSs you’d need to go to your server and operate in the theme’s files directly.\r\n<span style=\"font-style: italic; \"><span style=\"font-weight: bold; \">Easy to update.</span></span> Joomla is one of the most frequently updated engines and that’s a good thing because the Joomla developer’s team brings us new features and new useful functions each time.\r\nWhat is even better, you can apply the update in two-three clicks from your admin panel. I can’t stress this point enough!\r\n<span style=\"font-style: italic; \"><span style=\"font-weight: bold; \">Well Supported.</span></span> Joomla is an open-source platform, which enables anyone to contribute on a volunteer basis.\r\nThe downside to it is the fact that you can’t get on live chat or call someone from Joomla to get a free consultation for your site.\r\nLuckily, the Joomla team developed very detailed Joomla Documentation. If you’re more of a social type, you’ll enjoy Joomla User Forum.\r\n<span style=\"font-weight: bold; \">What makes Joomla stand out?</span>\r\n<span style=\"font-style: italic; \"><span style=\"font-weight: bold; \">Joomla Media Manager</span></span>\r\nJoomla Media Manager is a tool that allows you to operate your media files in your Joomla admin panel. Media Manager in Joomla is one of the most intuitive and easy to use among similar tools.\r\nUnlike other CMS systems, you can easily create new folders on your server and upload files there. It would require going to FTP or Cpanel in most other CMSs.\r\n<span style=\"font-style: italic; \"><span style=\"font-weight: bold; \">Joomla Contact Manager</span></span>\r\nJoomla is well prepared for being a corporate site that has numerous users with different roles and capabilities. Joomla contact manager enables you to create users in different departments and categories.\r\n<span style=\"font-style: italic; \"><span style=\"font-weight: bold; \">Joomla Content Management</span></span>\r\nEven though I’ve heard customers saying Joomla has a longer learning curve, compared to WordPress, it’s so worth it, because with Joomla comes greater flexibility and content combining possibilities.\r\n<span style=\"font-style: italic; \"><span style=\"font-weight: bold; \">Joomla Extensions (8000+)</span></span>\r\nJoomla has one of the most powerful extension databases among both CMS and eCommerce platforms.<br />You can find a plugin or module to do almost anything. What is remarkable regarding Joomla extensions - a lot of great plugins and modules are free, while most paid ones come with a free lite version and there is the possibility to upgrade to a premium version whenever you decide to do so.\r\n<span style=\"font-style: italic; \"><span style=\"font-weight: bold; \">Front-end Editing</span></span>\r\nI left it till the very end of the guide as it’s my favorite one. That’s what bugs me about WordPress and what cheers me up when working with Joomla - there is no need to go to the admin panel to edit some piece of content.\r\nIf you enabled front-end editing of your site, there will be a gear wheel next to any module and by clicking on it you’ll be able to make changes on the go. It’s a thrill in this bustling world in which we live.","iconURL":"https://old.roi4cio.com/fileadmin/user_upload/icon_Joomla_Development.png","alias":"joomla-development"},"619":{"id":619,"title":"Drupal Development","description":" Drupal is a content management software. It's used to make many of the websites and applications you use every day. Drupal has great standard features, like easy content authoring, reliable performance, and excellent security. But what sets it apart is its flexibility; modularity is one of its core principles. Its tools help you build the versatile, structured content that dynamic web experiences need.\r\nIt's also a great choice for creating integrated digital frameworks. You can extend it with anyone, or many, of thousands of add-ons. Modules expand Drupal's functionality. Themes let you customize your content's presentation. Distributions are packaged Drupal bundles you can use as starter-kits. Mix and match these components to enhance Drupal's core abilities. Or, integrate Drupal with external services and other applications in your infrastructure. No other content management software is this powerful and scalable.\r\nThe Drupal project is open source software. Anyone can download, use, work on, and share it with others. It's built on principles like collaboration, globalism, and innovation. It's distributed under the terms of the GNU General Public License (GPL). There are no licensing fees, ever. Drupal will always be free.","materialsDescription":" <span style=\"font-weight: bold;\">What can Drupal do? And why is it different from other CMS?</span>\r\nThere are many reasons why Drupal is the top three most used CMS, and why tons of small to big complex systems have made it their options. Here are those:\r\n<ul><li><span style=\"font-weight: bold;\">Reliability.</span> Drupal is one of the top three most popular content management systems in the world. It has a longstanding history. Though Drupal is a work in progress, it has been stable along the way. We have Drupal 7 now while Drupal 8 is going to be released. But you can be assured that you will be supported for Drupal previous version at least 5 years. Meanwhile, the resources will stay there for goods.</li><li><span style=\"font-weight: bold;\">Available resources.</span> Nearly anything you want to do with the system has been priorly created and done absolutely well by other people. Other great news is nearly all of the most useful modules (Drupal add-ons) are contributed to the Drupal community. This is invaluable because, in many CMS, you have to pay for important features. As a user, you have benefited greatly from someone’s efforts, and experience.</li><li><span style=\"font-weight: bold;\">A huge dedicated community.</span> The Drupal community is large, dynamic and has functioned well since 2001. As a newbie or a senior developer, Drupal.org is a must-have resource where you dig in for learning material, upcoming news, or ask for support from contributors, and specialists.</li><li><span style=\"font-weight: bold;\">Robust and convenience.</span> Be assured that the source code for building your Drupal sites has been precisely written, and designed by Drupal experts. When you have an intention to do more complex and advanced work, you will find it easy and convenient to modify the system. This grants users a great advantage over other CMS.</li><li><span style=\"font-weight: bold;\">Flexibility.</span> It’s not a chance that Drupal is considered the most flexible CMS. We have always thought that if you have an idea about any functions, contents, you can certainly create it with Drupal. Seriously. You can create any content on site. You can customize anything to fit your taste. You can create any website type that you want.</li><li><span style=\"font-weight: bold;\">Scalability.</span> By scalability, we mean that you can extend your Drupal core to a higher level with a variety of contributed Drupal modules. What’s great with the Drupal modules is that they integrate perfectly well with Drupal core. They also connect absolutely efficiently with the modules. This is regardless of the fact many modules are totally different. It is due to the natural structure &amp; built-in system of Drupal. This thereby enhances the power of extending your Drupal website. It is also a core strength of Drupal compared with other CMS. Meanwhile, Drupal is an open source. So suppose the modules you want don’t exist, you can create one, edit an existing module, or hire someone to do the job.</li><li><span style=\"font-weight: bold;\">Security.</span> Drupal has been meticulously tested up to strict security rules by Drupal experts and contributors. Its built-in security is strong. Drupal will lock down whatever directory installed, rendering important data, configuration files unable to be accessed directly. No wonder that many big sites with extreme security are using Drupal, namely - whitehouse.org, commerce.gov, weforum.org,...</li></ul>\r\n<span style=\"font-weight: bold;\">What are the uses of Drupal?</span>\r\nAs stated, due to its flexibility and extensibility, Drupal is not limited to any kind. Browse these lists to see the wide range of things that Drupal can build:\r\n<ul><li>Personal or corporate Web sites</li><li>Community portal sites</li><li>Intranet/Corporate sites</li><li>Blogs, art, portfolio, music, multimedia sites</li><li>Forums</li><li>International sites (websites with multi languages)</li><li>E-commerce sites</li><li>Resource directories</li><li>Social networking sites</li></ul>\r\n<span style=\"font-weight: bold;\">When Drupal isn't right?</span>\r\nIf it is necessary to know about a system before we set our foot on, it’s never been less important to explore its cons. Here we bring some of our caveats for the system:\r\n<ul><li>There’s a little learning curve. You will not learn and work with Drupal in a few days. Accept this fact. It’s harder to start compared with other CMS like Wordpress. But once you learn some basic things, it’s easy, and the flow is smoother.</li><li>It is not for those who have insufficient time to educate themselves about this system, or little money to pay a Drupal developer to carry out the work.</li><li>Finding a good Drupal developer is harder to find than that of Wordpress or other systems. It’s not hard to guess this considering the number of Wordpress developers compared with Drupal.</li></ul>\r\nIt always takes some investments to learn about something. For a new user, it would be a huge opportunity cost - what you will gain and lose working with one system and leave others behind.\r\nBut after all the choice is always yours.We expect it would be worth. The CMS you will spend thousands hours working. The system through this you make a living. The option that yields energy and satisfaction.","iconURL":"https://old.roi4cio.com/fileadmin/user_upload/icon_Drupal_Development__1_.png","alias":"drupal-development"},"621":{"id":621,"title":"WordPress","description":"","materialsDescription":"","iconURL":"https://old.roi4cio.com/fileadmin/user_upload/icon_WordPress.png","alias":"wordpress"},"623":{"id":623,"title":"Magento Development","description":" Magento is an open-source e-commerce platform written in PHP. It is one of the most popular open e-commerce systems in the network. This software is created using the Zend Framework. Magento source code is distributed under an Open Source Initiative (OSI) approved by the Open Software License (OSL) v3.0, which is similar to the AGPL but not GPL compliant.\r\nThe software was originally developed by Varien, Inc, a US private company headquartered in Culver City, California, with assistance from volunteers.\r\nMore than 100,000 online stores have been created on this platform. The platform code has been downloaded more than 2.5 million times, and $155 billion worth of goods have been sold through Magento-based systems in 2019. Two years ago, Magento accounted for about 30% of the total market share.\r\nVarien published the first general-availability release of the software on March 31, 2008. Roy Rubin, the former CEO of Varien, later sold a share of the company to eBay, which eventually completely acquired and then sold the company to Permira; Permira later sold it to Adobe.\r\nOn November 17, 2015, Magento 2.0 was released. Among the features changed in V2 are the following: reduced table locking issues, improved page caching, enterprise-grade scalability, inbuilt rich snippets for structured data, new file structure with easier customization, CSS Preprocessing using LESS &amp; CSS URL resolver, improved performance and a more structured code base. Magento employs the MySQL or MariaDB relational database management system, the PHP programming language, and elements of the Zend Framework. It applies the conventions of object-oriented programming and model–view–controller architecture. Magento also uses the entity–attribute–value model to store data. On top of that, Magento 2 introduced the Model-View-ViewModel pattern to its front-end code using the JavaScript library Knockout.js.","materialsDescription":" <span style=\"font-weight: bold;\">What is Magento? What is the benefit of choosing an Open Source platform?</span>\r\nMagento is an open-source eCommerce platform that enables the online business owners to control their online store and add powerful and flexible tools for marketing, catalog management, and search engine optimization.\r\nThe open-source platform offers much more innovation, customization, quality, support and agility at a very low cost. It enables the users to share and access the platform, add rich features according to the needs, thereby making changes more effective and easier.\r\n<span style=\"font-weight: bold;\">How can my Magento site be at par with the latest mobile trends and activities?</span>\r\nResponsive designs, device-specific applications have brought a great change in the business world over the past few years. Magento’s latest version includes a responsive template, and it offers great features that meet the needs of the mobile world both for the B2B and the B2C businesses.\r\n<span style=\"font-weight: bold;\">What should be included in my eCommerce Magento strategy?</span>\r\nBefore you plan to start with your Magento project, it is very important to write down the business goals of your website. This will help you to measure success. Once you are done with this, you can plan for the remaining strategies that include target audience, personalization, content plan, mobile strategy, third party add-ons and support services that you would require to keep your site running and performing.","iconURL":"https://old.roi4cio.com/fileadmin/user_upload/icon_Magento_Development.png","alias":"magento-development"},"625":{"id":625,"title":"Typo3 Development","description":" TYPO3 is a free and open-source Web content management system written in PHP. It is released under the GNU General Public License. It can run on several web servers, such as Apache or IIS, on top of many operating systems, among them Linux, Microsoft Windows, FreeBSD, macOS and OS/2.\r\nTYPO3 is, along with Drupal, Joomla! and WordPress, among the most popular content management systems worldwide, however it is more widespread in Europe than in other regions. The biggest market share can be found in German-speaking countries.\r\nTYPO3 is credited to be highly flexible, as code and content are operated separately. It can be extended by new functions without writing any program code. Also, the software is available in more than 50 languages and has a built-in localization system, therefore supports publishing content in multiple languages. Due to its features like editorial workplace and workflow, advanced frontend editing, scalability and maturity, TYPO3 is used to build and manage websites of different types and size ranges, from small sites for individuals or nonprofit organizations to multilingual enterprise solutions for large corporations. According to the ability to support a corporate environment, it classifies itself as an enterprise level content management system.\r\nTYPO3 was initially authored by the Dane Kasper Skårhøj in 1997. It is now developed by over 300 contributors under the lead of Benjamin Mack (Core team leader) and Mathias Schreiber (Product Owner).\r\nCalculations from the TYPO3 Association show that it is currently used in more than 500,000 installations. The number of installations detected by the public website &quot;CMS Crawler&quot; was around 384,000 by February 2017.","materialsDescription":" <span style=\"font-weight: bold; \">What is the official site of TYPO3?</span>\r\nhttps://typo3.org/ :: TYPO3 — the Professional, Flexible Content Management System. TYPO3 CMS is an Open Source Enterprise Content Management System with a large global community, backed by the approximately 900 members of the TYPO3 Association.\r\n<span style=\"font-weight: bold; \">Where did the name TYPO3 come from?</span>\r\nTYPO3 creator Kasper Skårhøj remembers it something like this:\r\nBack in the late 1990s, while still working on the initial version of his new CMS, he was looking for a name for the new software. At the time, the name “freestyle” appealed to him, but it posed some problems through its over-association with certain activities, products and trademarks. So the issue of naming stayed on the back burner for want of a better idea.\r\nThen, one Friday evening while he was alone in the office after hours coding, Kasper inadvertently typed an error into the command line of his Linux server and accidentally deleted a whole week work. He recalls that feeling you get of a cold rush through the body, when you realize something dreadful has happened. Slowly he got up, walked to the other end of the room and sat down in the couch looking back across the office at the laptop on his desk.\r\nHe stayed like this for a while, just staring out into the room. Then, after the initial shock had subsided, he walked back, sat down, and began to recreate the lost code. This went surprisingly quickly; as such things do when you have them fully worked out in your head. And it was during this new rush of adrenaline and the satisfaction that all was not actually lost, that he began to put the incident into perspective. The recreated programming was going smoothly and cleanly, which made him wonder how ironic it would be if a typo ended up actually improving the product! It was this thought that first brought up the expression “typo” as a possible name. It seemed to fit especially well because\r\n<ul><li>“typo”, as in typography, had something to do with layout and content and</li><li>“typo”, as in a typing mistake, now had a quirky share in the product’s history.</li></ul>\r\nThe newborn child now had a name.\r\nOriginally there were Typo versions 1, 2 and 2.5. But with the success of version 3, which had branded itself more or less by default, a “3” was eventually appended to the product title itself. Since the launch of “TYPO3 version 4”, TYPO3 has remained as the product name for all future versions. So, TYPO3 it is called … and TYPO3 it will continue to be.\r\n<span style=\"font-weight: bold; \">What is TYPO3?</span>\r\nTYPO3 is a free and open-source Web content management system written in PHP. It is released under the GNU General Public License. It can run on several web servers, such as Apache or IIS, on top of many operating systems, among them Linux, Microsoft Windows, FreeBSD, macOS and OS/2.\r\n<span style=\"font-weight: bold; \">Why use TYPO3?</span>\r\nBecause TYPO3 is the CMS for you! TYPO3 is an Enterprise Content Management System. If you need to create, manage and output any kind of digital content, TYPO3 is the right tool for you. You can start small and grow fast, but while your business case might change - you'll never need to change the Content Management System since TYPO3 adapts to your needs.\r\n<span style=\"font-weight: bold;\">What are the system requirements?</span>\r\n<ul><li>Operating System: Linux, Windows or Mac, or common cloud infrastructure setups</li><li>Webserver: Apache httpd, Nginx, Microsoft IIS, Caddy Server</li><li>PHP: PHP &gt;= 7.2</li><li>Database: PostgreSQL //Microsoft SQL Server //MariaDB(&gt;= 10.2) //MySQL(&gt;= 5) //SQLite</li><li>Hardware: RAM &gt;= 256 MB</li><li>Supported Browsers: Chrome (latest) //Firefox (latest) //Safari (latest) //Edge (latest) //Internet Explorer (&gt;= 11)</li></ul>","iconURL":"https://old.roi4cio.com/fileadmin/user_upload/icon_Typo3_Development.png","alias":"typo3-development"},"627":{"id":627,"title":"CSS Development","description":" Cascading Style Sheets (CSS) is a style sheet language used for describing the presentation of a document written in a markup language like HTML. CSS is a cornerstone technology of the World Wide Web, alongside HTML and JavaScript.\r\nCSS is designed to enable the separation of presentation and content, including layout, colors, and fonts. This separation can improve content accessibility, provide more flexibility and control in the specification of presentation characteristics, enable multiple web pages to share formatting by specifying the relevant CSS in a separate .css file, and reduce complexity and repetition in the structural content.\r\nSeparation of formatting and content also makes it feasible to present the same markup page in different styles for different rendering methods, such as on-screen, in print, by voice (via speech-based browser or screen reader), and on Braille-based tactile devices. CSS also has rules for alternate formatting if the content is accessed on a mobile device.\r\nThe name cascading comes from the specified priority scheme to determine which style rule applies if more than one rule matches a particular element. This cascading priority scheme is predictable.\r\nThe CSS specifications are maintained by the World Wide Web Consortium (W3C). Internet media type (MIME type) text/css is registered for use with CSS by RFC 2318 (March 1998). The W3C operates a free CSS validation service for CSS documents.\r\nIn addition to HTML, other markup languages support the use of CSS including XHTML, plain XML, SVG, and XUL.\r\nBefore CSS, nearly all presentational attributes of HTML documents were contained within the HTML markup. All font colors, background styles, element alignments, borders and sizes had to be explicitly described, often repeatedly, within the HTML. CSS lets authors move much of that information to another file, the style sheet, resulting in considerably simpler HTML.","materialsDescription":" <span style=\"font-weight: bold;\">Which is better: plain HTML or HTML with CSS?</span>\r\nMany site developers wonder why you need CSS if you can use plain HTML. Most likely, they only know the development of the site and have a number of gaps in knowledge. The bottom line is that HTML is used to structure the content of a page. And CSS allows you to format this content, make it more attractive to users.\r\nWhen the World Wide Web was created, the developers used only one language - HTML. It was used as a means of outputting structured text. The author had scant functional at his disposal. The maximum that could be done - to designate the title, select the paragraph. Tags were not enough.\r\nIn connection with the development of the Internet, the base of HTML language tags was expanded to allow the appearance of documents to be adjusted. At the same time, the structure remained unchanged.\r\nStructuring tags, for example &lt;table&gt;, began to spread. It was they who were more often chosen to design the pages instead of the structure itself. Some browsers offered their own tags, which only they could reproduce.\r\nThus, users often stumbled upon the message: &quot;To view a page, you need to use browser XXX.&quot;\r\nTo correct the situation and create a single database of tags for formatting was created CSS. He allowed refusing to bind tags to browsers.\r\nUsing HTML with CSS is more convenient than using plain HTML. CSS provides the following benefits:\r\n<ul><li>Designed to the smallest detail.</li><li>Using a single table, you can manage various documents.</li><li>You can customize the page display options for different devices: computer screen, smartphone screen, etc.</li></ul>\r\n<span style=\"font-weight: bold;\">Website Promotion with CSS</span>\r\nThe emergence and development of CSS have made the development of web resources more efficient and effective. Now it’s much easier and more convenient to control the design. Also, using CSS, we managed to reduce the code of the pages, their size. This had a positive impact on the download speed, the indexing also began to pass faster. The use of an adaptive approach allowed us to make a breakthrough in the field of mobile versions of Internet resources.\r\nTo improve the website promotion, experts recommend placing the CSS style sheets in a separate document so as not to increase the amount of code. You can create one or more such files.\r\nPreviously, search engines could not read style sheets, which made it possible to use them in black SEO, for example, to create invisible texts. Now it is better to abandon the use of CSS for other purposes.\r\nCSS has several advantages and allows you to improve the site, making it more attractive to visitors. However, it is important to correctly register all the elements.","iconURL":"https://old.roi4cio.com/fileadmin/user_upload/icon_CSS_Development.png","alias":"css-development"},"629":{"id":629,"title":"PHP Development","description":"PHP is a general-purpose programming language originally designed for web development. It was originally created by Rasmus Lerdorf in 1994; the PHP reference implementation is now produced by The PHP Group. PHP originally stood for Personal Home Page, but it now stands for the recursive initialism PHP: Hypertext Preprocessor.\r\nPHP code may be executed with a command line interface (CLI), embedded into HTML code, or used in combination with various web template systems, web content management systems, and web frameworks. PHP code is usually processed by a PHP interpreter implemented as a module in a web server or as a Common Gateway Interface (CGI) executable. The web server outputs the results of the interpreted and executed PHP code, which may be any type of data, such as generated HTML code or binary image data. PHP can be used for many programming tasks outside of the web context, such as standalone graphical applications and robotic drone control.\r\nThe standard PHP interpreter, powered by the Zend Engine, is free software released under the PHP License. PHP has been widely ported and can be deployed on most web servers on almost every operating system and platform, free of charge.\r\nThe PHP language evolved without a written formal specification or standard until 2014, with the original implementation acting as the de facto standard which other implementations aimed to follow. Since 2014, work has gone on to create a formal PHP specification.\r\nAs of September 2019, over 60% of sites on the web using PHP are still on discontinued/&quot;EOLed&quot; version 5.6 or older; versions prior to 7.2 are no longer officially supported by The PHP Development Team, but security support is provided by third parties, such as Debian.","materialsDescription":" <span style=\"font-weight: bold; \">What is PHP?</span>\r\nPHP stands for Hypertext Preprocessor. It is an open-source server-side scripting language that is widely used for web development. It supports many databases like MySQL, Oracle, Sybase, Solid, PostgreSQL, generic ODBC, etc.\r\n<span style=\"font-weight: bold; \">What is PEAR in PHP?</span>\r\nPEAR is a framework and repository for reusable PHP components. PEAR stands for PHP Extension and Application Repository. It contains all types of PHP code snippets and libraries. It also provides a command-line interface to install &quot;packages&quot; automatically.\r\n<span style=\"font-weight: bold; \">Who is known as the father of PHP?</span>\r\nRasmus Lerdorf.\r\n<span style=\"font-weight: bold; \">What was the old name of PHP?</span>\r\nThe old name of PHP was Personal Home Page.\r\n<span style=\"font-weight: bold; \">Explain the difference b/w static and dynamic websites?</span>\r\nIn static websites, content can't be changed after running the script. You can't change anything on the site. It is predefined.\r\nIn dynamic websites, the content of a script can be changed at the run time. Its content is regenerated every time a user visits or reload. Google, yahoo and every search engine is an example of a dynamic website.\r\n<span style=\"font-weight: bold; \">What is the name of the scripting engine in PHP?</span>\r\nThe scripting engine that powers PHP is called Zend Engine 2.","iconURL":"https://old.roi4cio.com/fileadmin/user_upload/icon_PHP_Development.png","alias":"php-development"},"631":{"id":631,"title":"CakePHP Development","description":" CakePHP is an open-source web framework. It follows the model–view–controller (MVC) approach and is written in PHP, modeled after the concepts of Ruby on Rails, and distributed under the MIT License.\r\nCakePHP uses well-known software engineering concepts and software design patterns, such as convention over configuration, model–view–controller, active record, association data mapping, and front controller.\r\nCakePHP started in April 2005, when a Polish programmer Michal Tatarynowicz wrote a minimal version of a rapid application development in PHP, dubbing it Cake. He published the framework under the MIT license, and opened it up to the online community of developers. In December 2005, L. Masters and G. J. Woodworth founded the Cake Software Foundation to promote development related to CakePHP. Version 1.0 was released on May 2006.\r\nOne of the project's inspirations was Ruby on Rails, using many of its concepts. The community has since grown and spawned several sub-projects.\r\nIn October 2009, project manager Woodworth and developer N. Abele resigned from the project to focus on their own projects, including the Lithium web framework (previously part of the CakePHP project). The remaining development team continued to focus on the original roadmap that was previously defined.","materialsDescription":" <span style=\"font-weight: bold;\">What is CakePHP? Why it’s Useful?</span>\r\nCakePHP is a free, open-source, rapid development framework for PHP. It’s a fundamental framework for developers to produce web applications.\r\nCakePHP has an active developer team and also the community, bringing terrific worth to the job. Along with maintaining you from wheel-reinventing, utilizing CakePHP suggests your application’s core is well examined as well as is being continuously boosted.\r\nBelow’s a quick listing of functions you’ll delight in when using CakePHP:\r\n<ul><li>Active, friendly community</li><li>Flexible licensing</li><li>Suitable with variations 4 and also 5 of PHP</li><li>Integrated CRUD for database Interaction</li><li>Application scaffolding</li><li>Code generation</li><li>MVC architecture</li><li>Request dispatcher with clean, customized URLs as well as routes</li><li>Integrated validation</li><li>Fast and also adaptable template (PHP phrase framework, with helpers)</li><li>Look for Helpers for AJAX, JavaScript, HTML Forms as well as a lot more</li><li>Email, Cookie, Security, Session, and also Request Handling Components</li><li>Flexible ACL</li><li>Data Sanitization</li><li>Flexible Caching</li><li>Localization</li><li>Works from any kind of web site directory site, with little to no Apache setup involved</li></ul>","iconURL":"https://old.roi4cio.com/fileadmin/user_upload/icon_CakePHP_Development.png","alias":"cakephp-development"},"633":{"id":633,"title":"Ruby on Rails Development","description":" Ruby on Rails, or Rails, is a server-side web application framework written in Ruby under the MIT License. Rails is a model–view–controller (MVC) framework, providing default structures for a database, a web service, and web pages. It encourages and facilitates the use of web standards such as JSON or XML for data transfer, HTML, CSS and JavaScript for user interfacing. In addition to MVC, Rails emphasizes the use of other well-known software engineering patterns and paradigms, including convention over configuration (CoC), don't repeat yourself (DRY), and the active record pattern.\r\nRuby on Rails' emergence in the 2000s greatly influenced web app development, through innovative features such as seamless database table creations, migrations, and scaffolding of views to enable rapid application development. Ruby on Rails' influence on other web frameworks remains apparent today, with many frameworks in other languages borrowing its ideas, including Django in Python, Catalyst in Perl, Laravel and CakePHP in PHP, Phoenix in Elixir, Play in Scala, and Sails.js in Node.js.\r\nRuby on Rails is intended to emphasize Convention over Configuration (CoC), and the Don't Repeat Yourself (DRY) principle.\r\n&quot;Convention over Configuration&quot; means a developer only needs to specify unconventional aspects of the application. For example, if there is a class Sale in the model, the corresponding table in the database is called sales by default. It is only if one deviates from this convention, such as calling the table &quot;products sold&quot;, that the developer needs to write code regarding these names. Generally, Ruby on Rails conventions lead to less code and less repetition.\r\n&quot;Don't repeat yourself&quot; means that information is located in a single, unambiguous place. For example, using the ActiveRecord module of Rails, the developer does not need to specify database column names in class definitions. Instead, Ruby on Rails can retrieve this information from the database based on the class name.\r\n&quot;Fat models, skinny controllers&quot; means that most of the application logic should be placed within the model while leaving the controller as light as possible.","materialsDescription":" <span style=\"font-weight: bold;\">What is Ruby on Rails?</span>\r\nRails is a development tool that gives web developers a framework, providing structure for all the code they write. The Rails framework helps developers to build websites and applications because it abstracts and simplifies common repetitive tasks.\r\nRails are written in Ruby, the programming language which is also used alongside Rails. Ruby is to Rails as PHP is to Symfony and Zend, or as Python is to Django. The appeal of Ruby to developers lies in the elegance and terseness of the language.\r\nOne of the key principles of Ruby on Rails development (henceforth ‘Rails’) is convention over configuration. This means that the programmer does not have to spend a lot of time configuring files in order to get set up, Rails comes with a set of conventions which help speed up development.\r\nAnother characteristic of Rails is the emphasis on RESTful application design. REST (Representational State Transfer) is a style of software architecture based around the client-server relationship. It encourages a logical structure within applications, which means they can easily be exposed as an API (Application Programming Interface).\r\nFrom a project management point of view, the Ruby on Rails community advocate Agile web development – an iterative development method, that encourages collaborative and flexible approach, which is particularly well-suited for web application development with fast-changing requirements.\r\nOver the last few years Ruby on Rails has gained a large and enthusiastic following, but let’s consider the main arguments for and against Rails.\r\n<span style=\"font-weight: bold;\">Why is it necessary to use Ruby on Rails?</span>\r\n<ul><li>The process of programming is much faster than with other frameworks and languages, partly because of the object-oriented nature of Ruby and the vast collection of open source code available within the Rails community.</li><li>The Rails conventions also make it easy for developers to move between different Rails projects, as each project will tend to follow the same structure and coding practices.</li><li>Rails are good for rapid application development (RAD), as the framework makes it easy to accommodate changes.</li><li>Ruby code is very readable and mostly self-documenting. This increases productivity, as there is less need to write out separate documentation, making it easier for other developers to pick up existing projects.</li><li>Rails have developed a strong focus on testing and have good testing frameworks.</li><li>Rails and most of its libraries are open sources, so unlike other commercial development frameworks, there are no licensing costs involved.</li></ul>\r\n<span style=\"font-weight: bold;\">Potential Rails problems and limitations and how to overcome them:</span>\r\n<ul><li>Not all website hosts can support Rails</li><li>Java and PHP are more widely used, and there are more developers in these languages</li><li>Performance and Scalability</li></ul>","iconURL":"https://old.roi4cio.com/fileadmin/user_upload/icon_Ruby_on_Rails_Development.png","alias":"ruby-on-rails-development"},"635":{"id":635,"title":"Python Development","description":" Python is an interpreted, high-level, general-purpose programming language. Created by Guido van Rossum and first released in 1991, Python's design philosophy emphasizes code readability with its notable use of significant whitespace. Its language constructs and object-oriented approach aim to help programmers write clear, logical code for small and large-scale projects.\r\nPython is dynamically typed and garbage-collected. It supports multiple programming paradigms, including procedural, object-oriented, and functional programming. Python is often described as a &quot;batteries included&quot; language due to its comprehensive standard library.\r\nPython was conceived in the late 1980s as a successor to the ABC language. Python 2.0, released in 2000, introduced features like list comprehensions and a garbage collection system capable of collecting reference cycles. Python 3.0, released in 2008, was a major revision of the language that is not completely backward-compatible, and much Python 2 code does not run unmodified on Python 3.\r\nThe Python 2 language, i.e. Python 2.7.x, was officially discontinued on 1 January 2020 (first planned for 2015) after which security patches and other improvements will not be released for it. With Python 2's end-of-life, only Python 3.5.x and later are supported.\r\nPython interpreters are available for many operating systems. A global community of programmers develops and maintains CPython, an open source reference implementation. A non-profit organization, the Python Software Foundation, manages and directs resources for Python and CPython development.\r\nPython is a multi-paradigm programming language. Object-oriented programming and structured programming are fully supported, and many of its features support functional programming and aspect-oriented programming (including by metaprogramming and metaobjects (magic methods)). Many other paradigms are supported via extensions, including design by contract and logic programming.\r\nPython uses dynamic typing and a combination of reference counting and a cycle-detecting garbage collector for memory management. It also features dynamic name resolution (late binding), which binds method and variable names during program execution.\r\nPython's design offers some support for functional programming in the Lisp tradition. It has filter, map, and reduce functions; list comprehensions, dictionaries, sets, and generator expressions. The standard library has two modules (itertools and functools) that implement functional tools borrowed from Haskell and Standard ML.","materialsDescription":" <span style=\"font-weight: bold;\">What is Python?</span>\r\nPython is an interpreted, interactive, object-oriented programming language. It incorporates modules, exceptions, dynamic typing, very high level dynamic data types, and classes. Python combines remarkable power with very clear syntax. It has interfaces to many system calls and libraries, as well as to various window systems, and is extensible in C or C++. It is also usable as an extension language for applications that need a programmable interface. Finally, Python is portable: it runs on many Unix variants, on the Mac, and on Windows 2000 and later.\r\n<span style=\"font-weight: bold;\">What is the Python Software Foundation?</span>\r\nThe Python Software Foundation is an independent non-profit organization that holds the copyright on Python versions 2.1 and newer. The PSF’s mission is to advance open source technology related to the Python programming language and to publicize the use of Python. The PSF’s home page is at <link https://www.python.org/psf/.>https://www.python.org/psf/.</link>\r\n<span style=\"font-weight: bold;\">Are there copyright restrictions on the use of Python?</span>\r\nYou can do anything you want with the source, as long as you leave the copyrights in and display those copyrights in any documentation about Python that you produce. If you honor the copyright rules, it’s OK to use Python for commercial use, to sell copies of Python in source or binary form (modified or unmodified), or to sell products that incorporate Python in some form. We would still like to know about all commercial use of Python, of course.\r\n<span style=\"font-weight: bold;\">What is Python good for?</span>\r\nPython is a high-level general-purpose programming language that can be applied to many different classes of problems.\r\nThe language comes with a large standard library that covers areas such as string processing (regular expressions, Unicode, calculating differences between files), Internet protocols (HTTP, FTP, SMTP, XML-RPC, POP, IMAP, CGI programming), software engineering (unit testing, logging, profiling, parsing Python code), and operating system interfaces (system calls, filesystems, TCP/IP sockets). Look at the table of contents for The Python Standard Library to get an idea of what’s available. A wide variety of third-party extensions are also available. Consult the Python Package Index to find packages of interest to you.<br /><br />","iconURL":"https://old.roi4cio.com/fileadmin/user_upload/icon_Python_Development.png","alias":"python-development"},"637":{"id":637,"title":"eCommerce development","description":" Electronic commerce is an online transaction of buying and selling products through World Wide Web-based websites and mobile applications. The examples of eCommerce business include supply chain, funds transfer, banking and electronic data interchange (EDI) and others. The electronic transactions are carried out through many eCommerce software platforms and eCommerce applications that are integrated with online websites with the help of eCommerce developers. The eCommerce applications are linked with the payment gateways for a smooth transfer of credit from one entity to another one.\r\nAn eCommerce developer is a very important role in eCommerce app development and web services to realize the power of online sales and marketing in all domains of businesses. The eCommerce developers are normally the web developers with additional exposure to the eCommerce tools and platforms commonly used in online businesses. HTML, CSS, JavaScript, Python, PHP, Ruby on Rail and related technologies are the fundamental components of eCommerce developer skills. In addition to those skills, the knowledge of eCommerce software platforms and API integration is very important for a good eCommerce developer resume.\r\nA good eCommerce website should be highly professional looking with great features and intuitive interface for the checkout process. This is only possible with the help of professional eCommerce developers. You need to evaluate a lot of things before you decide to hire eCommerce developers such as the backend technologies of your website, type of eCommerce, a domain of business, type of database and many others. Once you have decided about all these things, you need to match the eCommerce web developer resume, which is under consideration, with those factors to find a good eCommerce developer.","materialsDescription":" <span style=\"font-weight: bold;\">Why is it important for business owners to create an eСommerce site?</span>\r\nToday, people have very less time to purchase items, by going to physical stores. They prefer to browse their mobile devices or PC and shop online. Having an e-commerce site for your business will help you to capture this market base and keep your customers informed about all your latest products and services.\r\n<span style=\"font-weight: bold;\">How can I choose the best platform for my eСommerce business website?</span>\r\nBefore getting started with your eСommerce web development, consider the few fundamentals that can help to choose the best platform. Always consider the items that you are selling. Some eСommerce platforms can handle inventory tracking and multiple product options while some others will not. Consider the design options, payment gateways, the security of the site, integration with other tools, features and pricing before finalizing on the platform.\r\n<span style=\"font-weight: bold;\">How should I promote my eСommerce site?</span>\r\nThere are various ways to do this and the first thing to do is to promote the site to all the customers. This will help to increase your customer base. Your website address should be present in every advertisement that your company invests in. Register with the search engines and optimize your website as this will affect the traffic of your site.\r\n<span style=\"font-weight: bold;\">What are the important things that can turn browsers into buyers?</span>\r\nCreate your site so that it is much more oriented towards sales rather than marketing. Let your visitors see your products immediately instead of hiding them behind lots of marketing copy. Make a page that reads the terms and conditions as it will offer a professional look. Provide your contact details and explain your return policies, security, encryption methods, and payment options.\r\n<span style=\"font-weight: bold;\">How to create an impressive website?</span>\r\nThe beauty of a site lies in the way it operates and how user-friendly it is.&nbsp; Ensure that your site is fast, easy to use, professional and attractive. Also, make sure that you are able to fulfill the orders very promptly without any delay. In case you are unable to offer the service, make sure that your customer is informed about it via email.\r\n<span style=\"font-weight: bold;\">What are the security risks that are involved with eСommerce sites?</span>\r\neCommerce website owners should always keep in mind the three dimensions of security - confidentiality, integrity, and availability. Business owners should develop a good strategy that can help to make the site and transactions secured. To avoid any hackers gain access to important confidential data, include encryption methods for any data transactions.\r\n<span style=\"font-weight: bold;\">Is there any limit on the size of my product or customer database?</span>\r\nNo, as such there are no limits on the size. The biggest benefit of having an online store is that you can add unlimited products and catalogs and at the same time you can grow your customer base as you require.","iconURL":"https://old.roi4cio.com/fileadmin/user_upload/icon_eCommerce_development.png","alias":"ecommerce-development"},"639":{"id":639,"title":"HTML Development","description":" Hypertext Markup Language (HTML) is the standard markup language for documents designed to be displayed in a web browser. It can be assisted by technologies such as Cascading Style Sheets (CSS) and scripting languages such as JavaScript.\r\nWeb browsers receive HTML documents from a web server or from local storage and render the documents into multimedia web pages. HTML describes the structure of a web page semantically and originally included cues for the appearance of the document.\r\nHTML elements are the building blocks of HTML pages. With HTML constructs, images and other objects such as interactive forms may be embedded into the rendered page. HTML provides a means to create structured documents by denoting structural semantics for text such as headings, paragraphs, lists, links, quotes and other items. HTML elements are delineated by tags, written using angle brackets. Tags such as &lt;img /&gt; and &lt;input /&gt; directly introduce content into the page. Other tags such as &lt;p&gt; surround and provide information about document text and may include other tags as sub-elements. Browsers do not display the HTML tags, but use them to interpret the content of the page.\r\nHTML can embed programs written in a scripting language such as JavaScript, which affects the behavior and content of web pages. Inclusion of CSS defines the look and layout of content. The World Wide Web Consortium (W3C), former maintainer of the HTML and current maintainer of the CSS standards, has encouraged the use of CSS over explicit presentational HTML since 1997.","materialsDescription":" <span style=\"font-weight: bold;\">What is HTML5?</span>\r\nHTML5 contains powerful capabilities for Web-based applications with more powerful interaction, video support, graphics, more styling effects, and a full set of APIs. HTML5 adapts to any device, whether desktop, mobile, tablet, or television. HTML5 is an open platform developed under royalty-free licensing terms.\r\nPeople use the term HTML5 in two ways:\r\n<ul><li>to refer to a set of technologies that together form the future Open Web Platform. These technologies include HTML5 specification, CSS3, SVG, MathML, Geolocation, XmlHttpRequest, Context 2D, Web Fonts (WOFF) and others. The boundary of this set of technologies is informal and changes over time;</li><li>to refer to the HTML5 specification, which is, of course, also part of the Open Web Platform.</li></ul>\r\nAlthough it would be great if people used one term to refer to the specification and another term to refer to a set of specifications, in practice people use the term both ways.\r\n<span style=\"font-weight: bold;\">HTML5 has been cited by many thought leaders as the future of the Web. Why is HTML5 generating this excitement?</span>\r\nThere is huge demand for open standards that allow the creation of rich internet applications. Watching videos, finding the nearest restaurant, accessing emails while being offline are just some of the powerful new capabilities enabled by the set of specifications in development at W3C.\r\nOne aspect that interests W3C, in particular, is enabling people to combine different technologies. W3C works to ensure not just interoperable support in the software of a single specification, but compatibility among specifications.\r\nEven though HTML5 is still a draft, browser vendors are deploying features and generating a lot of excitement in the IT industry. This experience, in turn, allows W3C to revise its drafts. In this way, the final standard can transparently inform implementers where they need to pay close attention to security and privacy issues.\r\n<span style=\"font-weight: bold;\">When can I use HTML5?</span>\r\nPeople can already use parts of the platform that interoperate, but W3C's mission is global interoperable, to ensure that the web is available to all. Not all elements are fully implemented yet and some of them provide builtin fallback mechanisms, such as &lt;video&gt; or &lt;input&gt;. One can use HTML5 today, knowing the existing limitations and ensuring proper fallbacks.\r\n<span style=\"font-weight: bold;\">Which Web Browsers support HTML5?</span>\r\nW3C encourages implementation and testing long before a specification becomes a standard to ensure that two people can read a specification independently and write interoperable software. Early adopters provide implementers and W3C with tremendously valuable feedback because they help identify where interoperability issues exist.\r\n<span style=\"font-weight: bold;\">Do you think that the benefits of HTML5, such as its neutrality, rich graphics, no need plug-ins, outweigh the security risk it carries?</span>\r\nNow entering its third decade, the Web has evolved from a Web of documents into a formidable platform for networked applications that let us share information and services over the Internet. In this highly connected environment, it is important that powerful Web applications be designed with sensitivity to user privacy and security needs. The risks associated with modern Web applications are familiar to the HTML5 community.\r\nHTML5 and related specifications are being developed in W3C's open standards process. This process allows an expert review of features along with their security and privacy implications. Rich functionality that was previously available only through proprietary plugins is now documented in an open specification for all experts to review and improve. We're pleased to see the HTML5 specifications subject to rigorous public review since that helps make the Web a more secure environment.\r\nSome security issues are not confined to HTML5. W3C and IETF are working closely to specify technologies and protocol extensions to mitigate some issues (such as cross-site request forgery and cross-site scripting).\r\n<span style=\"font-weight: bold;\">Will there be an HTML6?</span>\r\nNo work is currently happening on HTML6 but feature requests that are not planned to be addressed in HTML5 are available at listed under HTML.next.","iconURL":"https://old.roi4cio.com/fileadmin/user_upload/icon_HTML_Development.png","alias":"html-development"},"641":{"id":641,"title":"XML Development","description":"","materialsDescription":"","iconURL":"https://old.roi4cio.com/fileadmin/user_upload/icon_XML_Development.png","alias":"xml-development"},"643":{"id":643,"title":"AJAX Development","description":" Ajax (also AJAX; short for asynchronous JavaScript and XML) is a set of web development techniques using many web technologies on the client side to create asynchronous web applications. With Ajax, web applications can send and retrieve data from a server asynchronously (in the background) without interfering with the display and behavior of the existing page. By decoupling the data interchange layer from the presentation layer, Ajax allows web pages and, by extension, web applications, to change content dynamically without the need to reload the entire page. In practice, modern implementations commonly utilize JSON instead of XML.\r\nAjax is not a single technology, but rather a group of technologies. HTML and CSS can be used in combination to mark up and style information. The webpage can then be modified by JavaScript to dynamically display—and allow the user to interact with—the new information. The built-in XMLHttpRequest object within JavaScript is commonly used to execute Ajax on webpages allowing websites to load content onto the screen without refreshing the page. Ajax is not a new technology, or different language, just existing technologies used in new ways.\r\nThe term Ajax has come to represent a broad group of Web technologies that can be used to implement a Web application that communicates with a server in the background, without interfering with the current state of the page. In the article that coined the term Ajax, Jesse James Garrett explained that the following technologies are incorporated:\r\n<ul><li>HTML (or XHTML) and CSS for presentation</li><li>The Document Object Model (DOM) for dynamic display of and interaction with data</li><li>JSON or XML for the interchange of data, and XSLT for its manipulation</li><li>The XMLHttpRequest object for asynchronous communication</li><li>JavaScript to bring these technologies together</li></ul>\r\nSince then, however, there have been a number of developments in the technologies used in an Ajax application, and in the definition of the term Ajax itself. XML is no longer required for data interchange and, therefore, XSLT is no longer required for the manipulation of data. JavaScript Object Notation (JSON) is often used as an alternative format for data interchange, although other formats such as preformatted HTML or plain text can also be used. A variety of popular JavaScript libraries, including JQuery, include abstractions to assist in executing Ajax requests.\r\nAsynchronous HTML and HTTP (AHAH) involves using XMLHTTPRequest to retrieve (X)HTML fragments, which are then inserted directly into the Web page.","materialsDescription":" <span style=\"font-weight: bold;\">What Is AJAX?</span>\r\nAJAX is an acronym that stands for Asynchronous JavaScript and XML, and it describes a set of development techniques used for building websites and web applications. According to web developer and Skillcrush WordPress instructor Ann Cascarano, the best way to understand AJAX is to start with identifying its specific purpose in the web development process. AJAX’s core function is to update web content asynchronously (the “A” of AJAX), meaning a user’s web browser doesn’t need to reload an entire web page when only a small portion of content on the page needs to change.\r\nOne of the most ubiquitous examples of asynchronous updating is Google’s “Google Suggest” feature. When you enter a search query into Google’s search bar and the Google website automatically begins offering auto-complete options while you type, that’s AJAX in action. The content on the page changes (in this case, the auto-complete options in the search bar) without having to manually refresh the page (something that would make Google Suggest impractical to use). Features like Google Suggest are a fundamental part of contemporary web browsing, which points to how essential AJAX is in web development. In addition to Google Suggest, Cascarano says that AJAX is commonly used to update features like status and notification bars, online forms, comments sections, and surveys and polls. But what exactly are the “J” and “X” of AJAX and how do they make asynchronous updating possible?\r\n<span style=\"font-weight: bold;\">JavaScript and XML</span>\r\nAs mentioned above, the “J” in AJAX stands for JavaScript. JavaScript is a type of scripting language—coding languages used to automate website processes so web developers don’t have to individually program each instance of the process that appears on a page. In JavaScript’s case, it’s used specifically to create, add, and manage dynamic website content. In other words, after markup languages like HTML and CSS are used to build and display static web features (headers, fonts, paragraphs, etc.), JavaScript is then used to control features that require real time updates while a visitor is viewing a page (think interactive maps, animated graphics, scrolling video, jukeboxes, etc). Since JavaScript is in the business of updating page content without requiring viewers to manually reload entire pages, it’s a critical component for AJAX’s asynchronous updating.\r\nThe “X” in AJAX is XML (Extensible Markup Language). As its name suggests, XML is a markup language, which means it’s in the same family as languages like HTML and CSS. Markup languages are coding languages used to annotate parts of a web document that are intended to give web browsers instructions about how to understand, process, and display a web page, versus the actual text intended to be displayed on the page. While HTML and CSS focus on instructing how page content is displayed (paragraphs, headers, fonts, colors, etc.), XML is used to transfer data stored on the page to the browsers that view it. Individual computer systems are often incompatible with one another and can’t understand or interact with data formatted by a different system. XML allows developers to bypass this obstacle by storing data in plain text format between XML tags. By doing this, XML offers a way of storing, moving, and sharing data that isn’t dependent on a particular software or hardware system (something that’s crucial for the internet, where data needs to be available and understandable across all software and hardware platforms). RSS feeds—subscription web feeds that allow users to access content from blogs and news sources as they are updated in real time—are built with XML and are an example of the language’s practical data-sharing capabilities. But how does XML combine with JavaScript to form AJAX?\r\n<span style=\"font-weight: bold;\">How Does AJAX Work?</span>\r\nAccording to Cascarano, JavaScript and XML combine to make asynchronous updating happen through the use of something called an XMLHttpRequest object. When a user visits a web page designed to make use of AJAX and a prescribed event occurs (the user loads the page, clicks a button, fills out a form, etc.) JavaScript creates an XMLHttpRequest object, which then transfers data in an XML format between a web browser (the program being used to view the website) and a web server (the software or hardware where a website’s data is stored). The XMLHttpRequest object sends a request for updated page data to the web server, the server process the request, a response is created server-side and sent back to the browser, which then uses JavaScript to process the response and display it on the screen as updated content.\r\nTo recap: JavaScript automates the updating process, the request for updated content is formatted in XML to make it universally understandable, and JavaScript again kicks in to refresh the relevant content for the user viewing the page. Cascarano notes that the AJAX technique ignores extraneous page data and only handles requests for updated information and the updated information itself. This is really the heart of AJAX’s effectiveness, making websites and applications that use AJAX faster and more responsive for users.","iconURL":"https://old.roi4cio.com/fileadmin/user_upload/icon_AJAX_Development.png","alias":"ajax-development"},"645":{"id":645,"title":"JavaScript development","description":" JavaScript, often abbreviated as JS, is a high-level, just-in-time compiled, object-oriented programming language that conforms to the ECMAScript specification. JavaScript has curly-bracket syntax, dynamic typing, prototype-based object-orientation, and first-class functions.\r\nAlongside HTML and CSS, JavaScript is one of the core technologies of the World Wide Web. JavaScript enables interactive web pages and is an essential part of web applications. The vast majority of websites use it, and major web browsers have a dedicated JavaScript engine to execute it.\r\nAs a multi-paradigm language, JavaScript supports event-driven, functional, and imperative (including object-oriented and prototype-based) programming styles. It has APIs for working with text, arrays, dates, regular expressions, and the DOM, but the language itself does not include any I/O, such as networking, storage, or graphics facilities. It relies upon the host environment in which it is embedded to provide these features.\r\nInitially only implemented client-side in web browsers, JavaScript engines are now embedded in many other types of host software, including server-side in web servers and databases, and in non-web programs such as word processors and PDF software, and in runtime environments that make JavaScript available for writing mobile and desktop applications, including desktop widgets.\r\nThe terms Vanilla JavaScript and Vanilla JS refer to JavaScript not extended by any frameworks or additional libraries. Scripts written in Vanilla JS are plain JavaScript code.\r\nAlthough there are similarities between JavaScript and Java, including language name, syntax, and respective standard libraries, the two languages are distinct and differ greatly in design. JavaScript was influenced by programming languages such as Self and Scheme. The JSON serialization format, used to store data structures in files or transmit them across networks, is based on JavaScript.\r\n&quot;JavaScript&quot; is a trademark of Oracle Corporation in the United States. It is used under license for technology invented and implemented by Netscape Communications and current entities such as the Mozilla Foundation.","materialsDescription":" <span style=\"font-weight: bold;\">What is JavaScript?</span>\r\nJavaScript is a client-side as well as a server-side scripting language that can be inserted into HTML pages and is understood by web browsers. JavaScript is also an Object-based Programming language.\r\n<span style=\"font-weight: bold;\">What are the differences between Java and JavaScript?</span>\r\nJava is a complete programming language. In contrast, JavaScript is a coded program that can be introduced to HTML pages. These two languages are not at all inter-dependent and are designed for different intent. Java is an object-oriented programming (OOPS) or structured programming languages like C++ or C whereas JavaScript is a client-side scripting language.\r\n<span style=\"font-weight: bold;\">Do I have to buy JavaScript?</span>\r\nNo--there is nothing to buy. The JavaScript interpreter is included in all major Internet Browsers--so as long as you have an Internet Browser, you're all set. JavaScript source files are written using an ordinary text editor, such as Notepad.\r\n<span style=\"font-weight: bold;\">What is JScript?</span>\r\nJScript is Microsoft's version of Netscape's JavaScript. Each Internet Browser vendor creates their own version of what is collectively known as JavaScript---however, the latest versions of these browsers are moving towards the ECMA Script standard.\r\n<span style=\"font-weight: bold;\">Who 'owns' JavaScript?</span>\r\nECMA governs the standard features of JavaScript---however, each vendor writes the code for their own versions of JavaScript.\r\n<span style=\"font-weight: bold;\">What are the features of JavaScript?</span>\r\n<ul><li>JavaScript is a lightweight, interpreted programming language.</li><li>JavaScript is designed for creating network-centric applications.</li><li>JavaScript is complementary to and integrated with Java.</li><li>JavaScript is complementary to and integrated with HTML.</li><li>JavaScript is open and cross-platform.</li></ul>","iconURL":"https://old.roi4cio.com/fileadmin/user_upload/icon_JavaScript_development.png","alias":"javascript-development"},"649":{"id":649,"title":"QA - Quality assurance","description":" <span style=\"font-weight: bold; \">Quality Assurance (QA)</span> is defined as an activity to ensure that an organization is providing the best possible product or service to customers. QA focuses on improving the processes to deliver Quality Products to the customer. An organization has to ensure, that processes are efficient and effective as per the quality standards defined for software products. Quality Assurance is popularly known as <span style=\"font-weight: bold; \">QA Testing. </span>\r\nQA establishes and maintains set requirements for developing or manufacturing reliable products. A quality assurance system is meant to increase customer confidence and a company's credibility, while also improving work processes and efficiency, and it enables a company to better compete with others.\r\nQuality assurance helps a company create products and services that meet the needs, expectations and requirements of customers. It yields high-quality product offerings that build trust and loyalty with customers. The standards and procedures defined by a quality assurance program help prevent product defects before they arise.\r\n<span style=\"font-weight: bold; \">Quality assurance utilizes one of three methods:</span>\r\n<span style=\"font-weight: bold; \">Failure testing, </span>which continually tests a product to determine if it breaks or fails. For physical products that need to withstand stress, this could involve testing the product under heat, pressure or vibration. For software products, failure testing might involve placing the software under high usage or load conditions.\r\n<span style=\"font-weight: bold; \">Statistical process control (SPC),</span> a methodology based on objective data and analysis and developed by Walter Shewhart at Western Electric Company and Bell Telephone Laboratories in the 1920's and 1930's. This methodology uses statistical methods to manage and control the production of products.\r\n<span style=\"font-weight: bold; \">Total quality management (TQM),</span> which applies quantitative methods as the basis for continuous improvement. TQM relies on facts, data and analysis to support product planning and performance reviews.\r\n<span style=\"font-weight: bold; \">Quality assurance in software.</span> Software quality assurance&nbsp; management (SQA) systematically finds patterns and the actions needed to improve development cycles. Finding and fixing coding errors can carry unintended consequences; it is possible to fix one thing, yet break other features and functionality at the same time.\r\nSQA software has become important for developers as a means of avoiding errors before they occur, saving development time and expenses. Even with SQA processes in place, an update to software can break other features and cause defects - commonly known as bugs.\r\n\r\n","materialsDescription":"<h1 class=\"align-center\"> Differences between Software testing and SQA services</h1>\r\n<ul><li><span style=\"font-weight: bold; \">SQA tools</span></li></ul>\r\n- Is about engineering process that ensures quality\r\n- Involve activities related to the implementation of processes, procedures, and standards.\r\n- Process focused \r\n- Preventive technique\r\n- Proactive measure\r\n- The scope of software quality testing tools applied to all products that will be created by the organization\r\n<ul><li><span style=\"font-weight: bold; \">Software Testing</span></li></ul>\r\n- Software Testing is to test a product for problems before the product goes live\r\n- Involves actives concerning verification of product Example - Review Testing\r\n- Product focused\r\n - Corrective technique\r\n- Reactive measure\r\n- The scope of Software Testing applies to a particular product being tested\r\n<h1 class=\"align-center\">Manual QA testing services Vs Automated Quality Assurance Testing</h1>\r\nSoftware testing is a huge domain, but it can be broadly categorized into two areas: manual testing and automated testing. Both of them can be used to achieve the best results, but it is always worth knowing the difference between the two. Each testing type – manual and automated – comes with its own set of advantages and disadvantages. \r\nYou can choose between manual and quality assurance testing services based on a variety of factors. These include:\r\n- Project requirements\r\n- Timeline\r\n- Budget\r\n- Expertise\r\n- Suitability<br /> \r\n<ul><li><span style=\"font-weight: bold; \">Manual Testing &nbsp;&nbsp;&nbsp; </span></li></ul>\r\n<span style=\"font-weight: bold; \">Exploratory Testing:</span> This scenario requires a tester’s expertise, creativity, knowledge, analytical and logical reasoning skills. With poorly written specifications and short execution time, human skills are a must to test in this scenario.\r\n<span style=\"font-weight: bold; \">Ad-Hoc Testing:</span> It is an unplanned method of testing where the biggest difference maker is a tester’s insight that can work without a specific approach.\r\n<span style=\"font-weight: bold; \">Usability Testing:</span> Here you need to check the level of user-friendliness and check the software for convenience. Human observation is a must to make the end user’s experience convenient.\r\n<ul><li><span style=\"font-weight: bold; \">Quality Assurance automation tools</span></li></ul>\r\n<span style=\"font-weight: bold; \">Repeated Execution:</span> When you need to execute a use case repeatedly, automated testing is a better option.\r\n<span style=\"font-weight: bold; \">Regression Testing:</span> Automated automated QA software is better here because the code changes frequently and the regressions can be run in a timely manner\r\n<span style=\"font-weight: bold; \">Performance:</span> You need an automated QA testing software when thousands of concurrent users are simulated at the same time. Additionally, it is a better solution for load testing.\r\n\r\n","iconURL":"https://old.roi4cio.com/fileadmin/user_upload/icon_Quality_assurance.png","alias":"qa-quality-assurance"},"651":{"id":651,"title":"Interface Testing","description":"When an application or a software or a website is developed, then there are several components of it. Those components can be server, database etc. The connection which integrates and facilitates the communication between these components is termed as an <span style=\"font-weight: bold;\">Interface</span>.\r\n<span style=\"font-weight: bold;\">Interface Testing</span> is performed to evaluate whether systems or components pass data and control correctly to one another. It is to verify if all the interactions between these modules are working properly and errors are handled properly.\r\n<span style=\"font-weight: bold; \">Interface Testing - Checklist</span>\r\n<ul><li>Verify that communication between the systems are done correctly</li><li>Verify if all supported hardware/software has been tested</li><li>Verify if all linked documents be supported/opened on all platforms</li><li>Verify the security requirements or encryption while communication happens between systems</li><li>Check if a Solution can handle network failures between Web site and application server</li></ul>\r\n<span style=\"font-weight: bold; \">Phases of Interface Testing. </span>\r\nThere are 2 components involved in Interface testing: 1) web server and application server interface and 2) web server and database server interface.\r\nBasically, 3 phases are involved in the Interface testing which is mentioned below:\r\n<b>Configuration and Development. </b>After the configuration of the interface and the development initialization, the configuration is needed to be verified as per the requirement. In simple words, verification takes place.\r\n<p style=\" text-align: justify; \"><b>Validation. </b>After the configuration and development stage, validation of the interface is necessary.</p>\r\n<p style=\" text-align: justify; \"><b>Maintenance.</b> After the completion of the project, when the project reaches it’s working stage, the interface is set to be monitored for its performance.</p>\r\n<p style=\" text-align: justify; \"></p>\r\n<p style=\"text-align: justify; \"><a name=\"StepsinvolvedinInterfaceTesting\"></a></p>","materialsDescription":"<h1 class=\"align-center\">Types of Interface Testing </h1>\r\nDuring Interface Testing various types of testing done on the interface which may include:\r\n<span style=\"font-weight: bold; \">Workflow:</span> It ensures that the interface engine handles your standard workflows as expected.\r\n<span style=\"font-weight: bold; \">Edge cases -unexpected values:</span> This is considered when testing include date, month and day reversed.\r\n<span style=\"font-weight: bold; \">Performance, load, and network testing:</span> A high-volume interface may require more Load Testing than a low-volume interface, depending on the interface engine and connectivity infrastructure.\r\n<span style=\"font-weight: bold; \">Individual system interface testing:</span> This includes testing each system individually. For example, billing system and inventory management system for the retail store should be able to operate separately.\r\n<h1 class=\"align-center\">What is Graphic User Interface (GUI) Testing?</h1>\r\nGraphic User Interface Testing (GUI) testing is the process of ensuring proper functionality of the graphical user interface (GUI) for a specific application. This involves making sure it behaves in accordance with its requirements and works as expected across the range of supported platforms and devices.\r\n<p class=\"align-center\"><span style=\"font-weight: bold; \">GUI Testing Approaches</span></p>\r\n<p class=\"align-left\"><span style=\"font-weight: bold; \">Manual Based Testing: </span>Under this approach, the screens of the application are checked manually by testers. They are being confirmed with the requirements that are stated in the business requirements. The UI is also matched with the designs that are provided during the documentation phase of the application.</p>\r\n<p class=\"align-left\"><span style=\"font-weight: bold; \">Automation Based Testing:</span> Automated user interface testing approach is performed in 2 steps i.e, record and play. While doing this, the steps are captured/recorded with the help of the automation tool while performing the first round of testing. And during playback, that recorded steps script is run when the application is under test. If the position of any button or image changes that during the playback, it does not get tracked and the test fails.</p>\r\n<h1 class=\"align-center\">What Features Should I Look for in a GUI Testing Tool?</h1>\r\nObviously the first answer is to choose a tool that can automate the specific technologies you’re testing, otherwise your automation is doomed to fail. Secondly you should choose a tool that has some of the following characteristics:\r\n<ul><li>Good interface testing software that makes it easy for your automation engineers to write tests, make changes, find issues and be able to deploy the tests on all the environments you need to test.</li><li>A tool that is well supported by the manufacturer and is keeping up to date with new web browsers, operating systems and technologies that you will need to test in the future. </li><li>An object abstraction layer so that your test analysts can write the tests in the way most natural for them and your automation engineers can create objects that point to physical items in the application that will be robust and not change every time you resort a grid or add data to the system.</li><li>Support for data-driven testing since as we have discussed, one of the big benefits of automation is the ability to run the same test thousands of times with different sets of data.</li></ul>\r\n\r\n","iconURL":"https://old.roi4cio.com/fileadmin/user_upload/icon_Interface_Testing.png","alias":"interface-testing"}},"companyUrl":"https://fibonalabs.com","countryCodes":["IND"],"certifications":[],"isSeller":true,"isSupplier":false,"isVendor":true,"presenterCodeLng":"","seo":{"title":"Fibonalabs","keywords":"","description":"Design, strategy, and technology are the key assets to simplify, strengthen and transform any business. 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