OWL-S contains also features for describing workflows. Here an example by Hans-Werner: {code} ... <owl:Class rdf:ID="Language" > <owl:oneOf rdf:parseType="Collection"> <owl:Thing rdf:about="#German" /> <owl:Thing rdf:about="#Saxonian" /> <owl:Thing rdf:about="#Elbian" /> <owl:Thing rdf:about="#Klingonian" /> </owl:oneOf> </owl:Class> <owl:Class rdf:ID="Text" /> <owl:ObjectProperty rdf:ID="writtenIn"> <rdfs:domain rdf:resource="#Text" /> <rdfs:range rdf:resource="#Language" /> </owl:ObjectProperty> <owl:Class rdf:ID="KlingonianText" /> <rdfs:subClassOf rdf:resource="#Text" /> <owl:Restriction> <owl:onProperty rdf:resource="#writtenIn" /> <owl:hasValue rdf:resource="#Klingonian" /> </owl:Restriction> </owl:Class> <KlingonianText rdf:ID="KlingonianLoveLetter"> </KlingonianText> ... <process:AtomicProcess rdf:ID="KlingonianSaxonian"> <process:hasInput> <process:Input rdf:ID="#KlingonianLoveLetter"> <process:parameterType rdf:resource="#KlingonianText"/> </process:Input> </process:hasInput> <process:hasOutput> <process:Output rdf:ID="#SaxonianLoveLetter"> <process:parameterType rdf:resource="#SaxonianText"/> </process:Output> </process:hasOutput> </process:AtomicProcess> ... <process:CompositeProcess rdf:ID="KlingonianGerman"> <process:composedOf> <process:Sequence> <process:components rdf:parseType="Collection"> <process:AtomicProcess rdf:about="KlingonianSaxonian"/> <process:AtomicProcess rdf:about="SaxonianGerman"/> </process:components> </process:Sequence> </process:composeOf> <process:hasInput> <process:Input rdf:ID="#KlingonianLoveLetter"> <process:parameterType rdf:resource="#KlingonianText"/> </process:Input> </process:hasInput> <process:hasOutput> <process:Output rdf:ID="#GermanLoveLetter"> <process:parameterType rdf:resource="#GermanText"/> </process:Output> </process:hasOutput> </process:CompositeProcess> {code} 2004-12-06 16:37:29.361 2004-12-06 16:37:29.361