Difference between revisions of "XML namespace"
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Revision as of 10:54, 19 May 2015
XML namespaces provide uniquely named elements and attributes in an XML document.
XML namespaces are defined in a W3C recommendation.
An XML instance may contain element or attribute names from more than one XML vocabulary. If each vocabulary is given a namespace, the ambiguity between identically named elements or attributes can be resolved.
A simple example would be to consider an XML instance that contained references to a customer and an ordered product.
- Both the customer element and the product element could have a child element named id
- References to the id element would therefore be ambiguous
- Placing them in different namespaces resolves the ambiguity
External Links
- XML namespace @ Wikipedia
