Ontology Based Hybrid Access Control for Automatic Interoperation

Semantic interoperation and service sharing have been accepted as efficient means to facilitate collaboration among heterogonous system applications. However, extensibility and complexity are still crucial problems in supporting multi-level automatic collaborations across dynamically changed domains. In this paper, we propose the ontology based hybrid access control model. It introduces the concept of Industry Coalition, which defines the common ontology and servers as the portal of an application domain for public. By mapping local authorizations to the common ontology, an enterprise can efficiently tackle the problems of automatic interoperation across heterogonous systems in the Coalition, as well as of the general requests from dynamically changed exterior collaborators not belonging to the Coalition. Several algorithms are also proposed to generate authorization mappings and maintain security constraints consistent. To illustrate our model, an example of property right exchange is given and experiment results are discussed.