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Conversation Types Abstract:We present a type theory for analyzing concurrent multiparty interactions as found in service- oriented computing. Our theory introduces a novel and flexible type structure, able to uni- formly describe both the internal and the interface behavior of systems, referred respectively as choreographies and contracts in web-services terminology. The notion of conversation builds on the fundamental concept of session, but generalizes it along directions up to now unexplored; in particular, conversation types discipline interactions in conversations while accounting for dynamical join and leave of an unanticipated number of participants. We prove that well-typed systems never violate the prescribed conversation constraints. We also present techniques to ensure progress of systems involving several interleaved conversations, a previously open problem. URL: http://dx.doi.org/10.1016/j.tcs.2010.09.010 Journal: Theoretical Computer Science ( Germany ) Volume: 411 Number: 51-52 Pages: 4399 to 4440 Date: November, 2010 Authors: |
