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Managing XML data: Tag URIs (24 Jan 2006)
Uniform Resource Identifiers (URIs) can identify things without necessarily locating them. XML namespace URIs are the most obvious such use, but many others abound. When you use URIs primarily as identifiers, it's important to create URIs that are globally unique without implying that they reside on a particular server. Tag is a simple algorithm for creating unique, easy-to-remember URIs while avoiding conflicts. This has important implications for RDF, Atom, and other systems that use URIs as identifiers.
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Article URL: http://www-128.ibm.com/developerworks/xml/library/x-mxd6.html

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