A Coordination Model for Triplespace Computing

Recent advances in middleware technologies propose semantics-aware tuplespaces as an instrument for coping with the requirements of scalability, heterogeneity and dynamism arising in highly distributed environments such as the Web or the emerging Semantic Web. In particular, Semantic Web services have inherited the Web service communication model, which is based on synchronous message exchange, thus being incompatible with the REST architectural model of the Web. Analogously to the conventional Web, truly Web-compliant service communication should, however, be based on persistent publication instead of message passing. This paper reconsiders “triplespace computing”, a coordination middleware for the Semantic Web. We look at how a coordination model for triplespace systems could look like in order to manage formal knowledge representations in a space and to support the interaction patterns characteristic for the Semantic Web and Semantic Web services as a precursor to the design and implementation of a triplespace platform in the context of the TripCom project. 1