摘要
1引言
互联网从早期的静态页面信息发布到Web内容的机器动态生成,使得人与人之间不仅可以在互联网上实现信息互通,人与机器也可以互动交流.但前两代的Web主要以TCP/IP和HTTP/HTML为基础支持人与人、人与机器、机器与机器之间的语法上的互操作,很少也很难支持语义互操作.
RDF defines a frame model for describing and interchanging meta-data and supports semantic interoperability of Web data and knowledge exchange. As a type system for RDF data model, RDF Schema provides a mechanism extending new modeling primitives and their semantic constraints. The ontology and its related model and underlying technology, which can express domain model in knowledge presentation, can make the Web logical. From the view of semantic Web framework, RDFS extensibility mechanism plays an important role in domain-modeling and semantic interoperability in Web environment. Based on the analysis of the structure of hierarchical class model of RDFS, this paper puts forward and discusses deeply the meta-model control principle of RDFS extensibility mechanism. Finally, an instance of RDFS extensibility mechanism, that is, OIL ontology class definition and slot definition on meta-level, is established ground on this principle.
出处
《计算机科学》
CSCD
北大核心
2002年第7期62-65,共4页
Computer Science
