TY  - CHAP
N2  - 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 uniformly 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.
N1  - Proceedings of the 18th European Symposium on Programming, ESOP 2009, Held as Part of the Joint European Conferences on Theory and Practice of Software, ETAPS 2009, York, UK, March 22-29, 2009.
UR  - http://dx.doi.org/10.1007/978-3-642-00590-9_21
TI  - Conversation types
ID  - eprints2298
AV  - public
T2  - Programming Languages and Systems
A1  - Caires, Luis
A1  - Torres Vieira, Hugo 
SP  - 285
Y1  - 2009///
T3  - Lecture Notes in Computer Science
PB  - Springer
EP  - 300
SN  - 978-3-642-00590-9
ER  -