Abstract: As the representation of the semantic Web, the ontology is the key element of the semantic Web system, and the key for knowledge sharing and working together. However, in the real world, the inherent heterogeneous and distribution of ontology have greatly limited the knowledge sharing and data integration. In order to realize the knowledge sharing and data integration, the ontology matching has been widely studied. With the deepening of the research, numerows of effective ontology matching methods have been proposed. RiMOM2 is a multi-strategy framework of ontology matching, which integrated many effective ontology matching methods. For primary users, RiMOM2 hides unnecessary thresholds and parameters settings in order to achieve an easily manipulated ontology matching with common rectuiremenu. While for advanced users, it provides a customizable matching process function so that it can be used for ontology matching with specific requirements. hhe matching method components also arc easily extensible in the framework.

Key words: Semantic Web, Ontology, Ontology matching, Instance matching, Framework