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New Technology of Library and Information Service  2003, Vol. 19 Issue (2): 9-12    DOI: 10.11925/infotech.1003-3513.2003.02.03
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URI and Digital Object Unique Identifier
Mao Jun   Zhang Xiaolin   Marcia Lei Zeng   Li Guangjian   Liu Wei
(Research Group of CSDL Open Description Project, Beijing 100080,China)
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As the infrastructure of digital library, digital object unique identifier is responsible for identifying, locating and managing of digital objects. This article discusses the types, component and principle of unique identifier, and analysis the demand of unique identifier from the logics,namespace,complexity,integratity and interoperability. Next ,the difference and relation have been compared among URI,URL and URN. Those syntax and identifying framework are also introduced. At last Cool URL is discussed in detail.

Key wordsURI      DOI      URL      URN      COOL URL     
Received: 04 September 2002      Published: 25 April 2003


Corresponding Authors: Mao Jun,Zhang Xiaolin,Marcia LeiZeng,LiGuangjian,Liu Wei   
About author:: Mao Jun,Zhang Xiaolin,Marcia LeiZeng,LiGuangjian,Liu Wei

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Mao Jun,Zhang Xiaolin,Marcia LeiZeng,LiGuangjian,Liu Wei. URI and Digital Object Unique Identifier. New Technology of Library and Information Service, 2003, 19(2): 9-12.

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