Change - Uniform Resource iIdentifier

Created on Feb. 17, 2013, 12:29 a.m. by Hevok & updated on March 29, 2013, 8:30 a.m. by Hevok

In general the Concept of Uniform Resource Identifier (URI) combines the Address and Identity of an oObject. The problem with address is that like in the case for real pPeople the address might change during life time. On the other hand a URI is also a unique nName, therefore it denotes the iIdentity of a tThing, thus persistent. It is a persistent iIdentifier for a Web rResource by giving it a nName. This nName does not change during the life cycle. However a nName is as it is in real life not sufficient for finding tThings. It need to be known where the tThing is. As it is possible that tThings move around, one has to ask somebody for the address. If a nName is given a naming sServices can be asked. This retrieves the uUniform rResource lLocater which enables to immediate access this tThings. Therefore an URI combines both Concepts the aAddress and the iIdentity. ¶
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Address (Locater) ¶
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- Uniform Resource Locator (URL, RFC 1738) ¶
- denotes, where a resource can be found in the Web by stating its primary access mechanism ¶
- might change during life cycle ¶
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Identity (Name) ¶
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- Uniform Resource Name (URN, RFC 2141) ¶
- persistent identifier for a Web resource ¶
- remains unchanged during life cycle ¶
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