Object-oriented programming: the CLOS perspective
Object-oriented programming: the CLOS perspective
The Art of the Metaobject Protocol
The Art of the Metaobject Protocol
Common Lisp: The Language
On the properties of metamodeling in OWL
ISWC'05 Proceedings of the 4th international conference on The Semantic Web
OWL-Full reasoning from an object oriented perspective
ASWC'06 Proceedings of the First Asian conference on The Semantic Web
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We have developed an OWL (Web Ontology Language) Full language processor, SWCLOS, for processing semantic web pages on top of the Common Lisp Object System (CLOS). To implement the OWL Full level of capability, we leveraged the dynamic and reflective features of CLOS. The metamodeling capability of CLOS is utilized to realize the metamodeling capability of Resource Description Framework (RDF) and OWL Full. The native computational model of CLOS is changed into the model of RDF and OWL by using the Meta-Object Protocol (MOP) in CLOS. Although the metamodeling specifications in CLOS are firmly established in the Common Lisp community, the semantics is not yet fully developed, since Common Lisp does not have formal semantics. In this paper, we focus on metamodeling in CLOS. We point out that the architecture of CLOS in the metamodeling is the same as in RDF and clarify the denotational semantics of CLOS in comparison with the RDF semantics.