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XML Topic Maps: Creating and Using Topic Maps for the Web by Jack Park, Sam Hunting

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The Big Picture: Merging Information and Knowledge

Information management results from the unification of documents and data.

XML bridges a gap between two domains: documents and data. The gap was once considered unbridgeable. Documents were not highly structured, while databases were. By applying a database-like approach to documents, XML, following SGML, helps us to recognize that documents and databases are two sides of the same coin. A document, once structured, can be decomposed into a set of elementary fields (called elements). A database can be rendered as a document. The Web, as a platform for information interchange, does not enable us to determine the ultimate origin of an information source. A table in HTML can be produced by a document ...

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