Changes between Version 21 and Version 22 of SemanticWebServices

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2009/03/20 10:50:22 (15 years ago)
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rvos
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  • SemanticWebServices

    v21 v22  
    3131The holy grail of web service interoperability is hampered along three axes: syntax, semantics and interface. In terms of core data syntax, bioinformatics tools consume and produce data in many different formats, some of which are loosely defined syntactically (e.g. legacy flat file formats). In addition, the semantics of what we are trying to do with data, and what we mean by encoding data in a certain way, are often loosely defined. Many file formats are abused and overloaded to add semantics to fields that weren't intended for that (e.g. in comments, definition lines, key/value fields). Lastly, there is a proliferation of interfaces, each of which probably make sense on their own (e.g. RESTful APIs) but they all aren't interoperable in a way that a machine can make sense of by itself. By adopting common standards to define syntax, semantics and interface, different service providers will be able to promote interoperability. Hence, this subgroup consists of people discussing the application of such technologies as WSDL, SAWSDL, OWL, RDF/XML (and other XML tools, i.e. XML schema, transforms). 
    3232In addition to these technical arguments, there are also good philosophical arguments for formalizing our conception of the world. For example, as a researcher, this provides a formal way of sharing your knowledge with other people, thereby promoting reproducibility. 
    33 === State of the practice === 
     33=== Contributing technologies === 
    3434==== RDF ==== 
    3535[http://www.w3.org/RDF/ RDF] assumes that anything in the world can be described in triples, i.e. statements consisting of subject, predicate, object. [http://www.w3.org/TR/rdf-syntax-grammar/ RDF/XML] is just one serialization of the concept of triples (other ways are M3, [http://www.json.org/ JSON], [http://www.w3.org/TR/rdfa-syntax/ RDFa] etc.). An RDF/XML document imports at least two namespaces: rdf and [http://www.w3.org/TR/rdf-schema/ rdfs].