XML Information Set

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XML Information Set (Infoset) is a W3C recommendation.

Infoset specification provides a consistent set of definitions for use in other specifications that need to refer to the information in a well-formed XML document.

An XML document has an information set if it is well-formed and satisfies the namespace constraints. There is no requirement for an XML document to be valid in order to have an information set.

An information set can contain up to eleven different types of information items

The Document Information Item
Element Information Items
Attribute Information Items
Processing Instruction Information Items
Unexpanded Entity Reference Information Items
Character Information Items
Comment Information Items
The Document Type Declaration Information Item
Unparsed Entity Information Items
Notation Information Items
Namespace Information Items

Infoset recommendation Second Edition was adopted on February 4, 2004.

External links

[W3C XML Information set recommendation (Second Edition)]

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