Communications of the ACM
Reactive Tuple Spaces for Mobile Agent Coordination
MA '98 Proceedings of the Second International Workshop on Mobile Agents
HICSS '99 Proceedings of the Thirty-second Annual Hawaii International Conference on System Sciences-Volume 8 - Volume 8
Relational subscription middleware for Internet-scale publish-subscribe
Proceedings of the 2nd international workshop on Distributed event-based systems
A Semantic Publish/Subscribe System
CEC-EAST '04 Proceedings of the E-Commerce Technology for Dynamic E-Business, IEEE International Conference
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The tuplespace system is a popular cooperative communication paradigm in service-oriented computing. Tuple matching in existing tuplespace systems is either type-based or object-based. It requires that both tuple writers and readers adhere to the same approach of information organization (i.e., same terminologies or class hierarchy). Further, it examines the value of the tuple contents only. As such, these tuplespace systems are inadequate for supporting communication among services in heterogeneous and dynamic environments, because services are forced to adopt the same approach to organizing the information exchanged. In order to overcome these limitations and constraints, we propose a semantic tuplespace system. Our system uses ontologies to understand the semantics of tuple contents, and correlates tuples using relational operators as part of tuple matching. Therefore, by engineering ontologies, our system allows different services to exchange information in their native formats. We argue that a semantic tuplespace system like ours enables flexible and on-demand communication among services.