| Abstract | This paper describes an Object-Oriented extension to RuleML as a modular combination of three sublanguages. (1) User-level roles provide frame-like slot representations as unordered argument collections in atoms and complex terms. (2) URI-grounded clauses allow for 'webizing' using URIs as object identifiers for facts and rules. (3) Ordersorted terms permit typed variables via Web links into taxonomies such as RDF Schema class hierarchies, thus reusing the Semantic Web's lightweight ontologies. Besides introducing the first sublanguage with the Positional-Roled (ASCII) syntax, all three sublanguages are introduced with the OO RuleML (XML) syntax. Their semantics are sketched and their implementation paths are discussed. |
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