Data Federation
The RDF data model was designed from the beginning with data federation in mind. Information from any source is converted into a set of triples so that data federation of any kind—spreadsheets and XML, database tables and web pages—is accomplished with a single mechanism. As shown in Figure 4.2, this strategy of federation converts information from multiple sources into a single format and then combines all the information into a single store. This is in contrast to a federation strategy in which the application queries each source using a method corresponding to that format. RDF does not refer to a file format or a particular language for encoding data but rather to the data model of representing information in triples. It is ...
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