These elements consist of tags inside corner brackets that surround some text. HTML documents are considered text files that hold information that needs to be published.Įmbedded instructions are known as elements that represent the organization and presentation of a document in a web browser. The browser simply reads a document with HTML markup in it and renders it on the screen by inspecting the HTML elements placed in the document. The markup command used in web-based content signifies the document structure and layout to the browser. HTML (Hypertext Markup Language) is a markup language for building web pages. The body part is partitioned into two parts – structural and content (Present in plain text). The prologue part of XML consists of administrative metadata such as XML declarations, optional processing instructions, Document type declarations and comments. XML documents involve two parts – prologue and body. Moreover, it is only valid until it is well formed and valid means that the element structure and markup must match a standard set of rules. Here a well-formed specifies that the XML parser cannot pass code if it is filled with syntax, punctuation, grammar errors. XML is a well-established and valid markup language.

The basic units in XML are known as elements. XML documents include data as strings and text surrounded by text markup. In XML to create a language or elements, one must follow some rules defined in XML. The XML language provides a platform for defining markup elements and generating a customized markup language. When the IBM GML was adopted by ISO, it was named SGML (Standard Generalized Markup Language) and it was the basis for a complex documentation system. IBM compiled it as GML (Generalized Markup Language) in the 1960s. XML (Extensible Markup Language) is a language that allows the user to define a data representation or data structure in which a value is assigned to each field in the structure. In contrast, XML was developed to provide interoperability with SGML and HTML and ease of implementation. HTML (Hypertext Markup Language) is designed to facilitate web-based document transfer. XML can be used to build a markup language whereas HTML itself is a markup language. The previous difference is that in XML there are provisions for defining new elements while HTML does not provide a specification for defining new elements and using predefined tags. The difference XML and HTML are markup languages that are defined for different purposes and have some differences.

Difference between xml and html