The SALADIN project: summary report
ACM SIGSOFT Software Engineering Notes
Using tuplespaces to enact petri net-based workflow definitions
Proceedings of the 10th International Conference on Information Integration and Web-based Applications & Services
Tuplespace middleware for Petri net-based workflow execution
International Journal of Web and Grid Services
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Coordination via tuple spaces is a well known and accepted technique for designing distributed systems; originally introduced in Linda, it has been very recently adopted within the Java environment as underlying mechanism of the JavaSpaces TM technology. Here we explore the possibility of using such technique in the development of systems adopting the UML notation. While tuple spaces are modelled quite naturally in UML as particular classes, state machines do not seem adequate for modelling active objects interacting via tuple spaces. Thus, we propose to extend state machines by adding transition triggers corresponding to successful and failed execution of lookup operations on a tuple space. The result is a UML profile, and thus a visual notation, for modelling distributed systems based on tuple spaces.