Data is described using XML (Extensible Markup Language). The XML standard is a versatile technique to build information formats and electronically transmit structured data over public and private networks.

XML is a markup language based on the Standard Generalized Markup Language (SGML), which defines markup languages.

The primary goal of XML is to develop data formats that capture content for reference, database entries, transactions, and various other sorts of data. XML data may produce multiple content kinds by constructing distinct forms of content based on the XML data, such as online, printed, and mobile content.

Uses Of XML

According to the World Wide Web Consortium (W3C), the primary goal of XML is to create a simple text-based format for conveying specific data, including the following:

• underlying data formats for programs such as Microsoft Office; 
• technical documentation; 
• application software customization choices; 
• books; 
• transactions; 
• and invoices

XML allows for the exchange of information sources among and across the following:

• programs and programs; 
• people and programs; and 
• domestically and across networks

The World Wide Web Consortium (W3C) establishes the XML standard and advocates its usage for web content. While XML and HTML are indeed based on the SGML platform, the W3C has also established the XHTML and XHTLM5 document formats, which match the HTML and HTML5 web content standards.

How does XML function?

XML functions by offering a consistent data format. If the formatting is incorrect, applications that interpret or exhibit the encoded data may produce an error.

To be called well-formed, an XML document must be genuine XML code that conforms to XML syntax and can be read and interpreted by an XML parser. Elements are the building blocks of all XML documents; an element serves as a container for data. Opening and closing tags mark the beginning and finish of an element, with further elements or basic data included within.

XML functions by delivering properly structured data that can be handled reliably by systems intended to manage XML inputs.

Presentation is not determined in XML documents, and there aren’t any default XML tags. Most XML applications employ predetermined sets of tags that vary according to the XML format. Most users build their documents using standard XML formats, but they can specify extra XML components as needed.

XML Is Not A Programming Language

XML is a markup language, not a programming language. As a markup language, it is applied to annotate data with tags that understand it. Programming languages are made up of instructions that are used to implement algorithms. In contrast, markup languages are used to structure data for processing by programs that execute algorithms that understand marked-up data.