Models and formalisms for semantic markup
نویسندگان
چکیده
A multitude of schema language models and formalisms have been proposed to enrich documents with some kind of semantics. From a theoretical point of view, there are two kinds of schema languages referring to different levels of abstraction: data modeling (naming) languages and domain modeling (ontology) languages. According to Lee and Chu (2000) ’noteworthy’ data modeling languages are XML DTD, XML schema, XDR (Frankston & Thompson, 1998), SOX (Davidson et al., 1999), Schematron (Jelliffe, 2000), and DSD (Klarlund, Moller, & Schwatzbach, 1999). In addition to the former five standards we will in addition consider the RELAX-NG approach (Clark & Murata, 2001; Clark, 2001).
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تاریخ انتشار 2003