HTML And XML

Difference between HTML and XML:

Difference	HTML	XML
Definition	Markup language for displaying web pages in a web browser. Designed to display data with focus on how the data looks	Markup language defines a set of rules for encoding documents that can be read by both humans and machines. Designed with focus on storing and transporting data.
Date when invented	1990	1996
Type	Static	Dynamic
Usage	Display a web page	Transport data between the application and the database. To develop other mark up languages.
Processing/Rules	No strict rules. Browser will still generate data to the best of its ability	Strict rules must be followed or processor will terminate processing the file
Language type	Presentation	Neither presentation, nor programming
Tags	Predefined	Custom tags can be created by the author
White Space	Cannot preserve white space	Preserves white space
Limitations	Data does not know itself very well. Data cannot change in response to environment. Data cannot be easily maintained. Cannot store or call on variables. Lacks the capability to define new structures by defining relationships between classes. Tags are not useful for exchanging the document between applications.	Cannot be used as a subtype of a sql_variant instance. Does not support casting or converting to either text or ntext. Does not support the following column and table constraints. XML provides its own encoding. Collations apply to string types only. Cannot be compared or sorted. Cannot be used in Distributed Partitioned Views. Not well supported by browsers.

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