Research on IETM Based on Ontology Integration Framework

Ontology library is one of the cores of the intelligent IETM system; it is widely used in intelligent information retrieve, e-business, and network collaboration. Information retrieval and graphical representation of follow-up operation should be based on the ontology, many applications require the integrated query from related information resources, which arises the problem of semantic interoperation in heterogeneous information resources. There are many complex factors in integrating them, because different ontology creators adopt different semantics from his individual view. This paper proposes the framework of ontology integration though analyzing the problems in the process of ontology integration. The application results show that the proposed cycle evolution of ontology construction method to solve the IETM domain ontology building and storage problems.

Security in Semantic Interoperation

With the increasing interest in Semantic Web-based applications, researchers have started to build tools enabling organisations to share information. An important aspect in maintaining the Semantic Web is, however, to preserve security during semantic interoperation of different entities. Security and privacy are indispensable to the success of Semantic Web services. Hence, this chapter aims to investigate the currently used security methods in semantic interoperation, including the security methods employing Semantic Web representation languages such as XML, RDF and ontologies, and their application methods in semantic interoperation such as secure access control and secure knowledge management. How to manage privacy, trust and reputation at the same time during semantic interoperation will also be discussed in this chapter. Finally, some directions for our further research will be presented.

Theory of Ontology and Meta-Modeling and the Standard

With the continuous development and rapid progress of information techniques, complexity and scale of information systems are expanding increasingly, which consequently brings our research focus on how to ensure the effective exchange of information and efficient interconnection between each part of a information system. However, different modeling paradigm, languages and platforms cause grammatical and semantic diversity to the existing information resources, a challenging approach to information resources management is needed to promote deep sharing of those information resources and implement rapid integration based on them. To realize semantic interoperation between diverse information systems and resources, the authors combine meta-modeling methodology in software engineering and ontology from philosophy to exploit a novel methodology named Theory of Ontology & Meta-modeling. Based on the methodology, the authors contributed to an international standard project ISO/IEC 19763- 3: Metamodel for ontology registration since 2003, which was officially published as an international standard in Dec, 2007. Furthermore, we developed a Management and Service platform for Semantic Interoperability on Manufacturing Informationalization Software Component Repository (SCR). It can support ontology-based software component attributes classification, registration and management using ISO/IEC 19763-3 standard, and implement semantic (ontology) based software component query and retrieval. Based on above mentioned techniques, this platform can facilitate the management of semantic interoperability, which provides the reliable infrastructure for the reusing and sharing of heterogeneous software component resources.