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Article | REF: H7155 V2

Metadata, ontologies and digital documents

Authors: Hélène RICHY, Sylvie DESPRÉS

Publication date: November 10, 2007 | Lire en français

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    2. Description of Web resources

    Without going into a detailed description of the Web, it may be useful, for the understanding of what follows, to recall how the Web works. The Web can be seen as a network enabling the exchange of information based on :

    • a resource identification mechanism (URIs): a "resource" refers to all or part of a Web page, whether text, image or sound;

    • resource representation formats (XHTML, XML) and encoding formats (Unicode): the universality of the Web, open to all languages and cultures, requires support for different character encodings, leading to the adoption of Unicode;

    • a resource exchange mechanism: several communication protocols can be used, depending on whether HTML documents (HTTP: HypertText Transfer Protocol), files (FTP: File Transfer Protocol) or messages (SMTP: Simple...

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