[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: About OWL syntax
Didier PH Martin scripsit: > The class definition and the property definition could be located anywhere > in the document and no constraints on placement are imposed by the specs. By > simple examination of the class object it is not possible for somebody to > deduce what are the properties of this object. However, by a simple > examination of the property object it is possible to know what are the > classes associated to this property. That is intentional in the RDF Schema design: properties are a primitive notion distinct from classes. This allows you to add your own properties to existing classes. For example, you might define the class your:book, with properties dc:title, dc:author, isbn:isbn, and your:rating, the last representing what you think of the book. I could then add new properties to the class such as my:rating or my:criticizesW3C. This is part of the support machinery for the design principle "anyone can say anything about anything in RDF". -- Where the wombat has walked, John Cowan <jcowan@r...> it will inevitably walk again. http://www.ccil.org/~cowan
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