TY - CHAP ED - De Nicola, Rocco PB - Springer A1 - Lapadula, Alessandro A1 - Pugliese, Rosario A1 - Tiezzi, Francesco T3 - Lecture Notes in Computer Science SP - 33 Y1 - 2007/// N1 - ©Springer-Verlag Berlin Heidelberg 2007. The original publication is available at www.springerlink.com ID - eprints416 EP - 47 T2 - Programming Languages and Systems (ESOP 2007) SN - 978-3-540-71314-2 M1 - 4421 N2 - We introduce COWS (Calculus for Orchestration of Web Services), a new foundational language for SOC whose design has been influenced by WS-BPEL, the de facto standard language for orchestration of web services. COWS combines in an original way a number of ingredients borrowed from well-known process calculi, e.g. asynchronous communication, polyadic synchronization, pattern matching, protection, delimited receiving and killing activities, while resulting different from any of them. Several examples illustrates COWS peculiarities and show its expressiveness both for modelling imperative and orchestration constructs, e.g. web services, flow graphs, fault and compensation handlers, and for encoding other process and orchestration languages. AV - public TI - A Calculus for Orchestration of Web Services UR - http://dx.doi.org/10.1007/978-3-540-71316-6_4 ER -