<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "COWS: A Timed Service-Oriented Calculus"^^ . "COWS (Calculus for Orchestration of Web Services) is a foundational language for Service Oriented Computing that 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. In this paper, we extend COWS with timed orchestration constructs, this way we obtain a language capable of completely formalizing the semantics of WS-BPEL, the ‘de facto’ standard language for orchestration of web services. We present the semantics of the extended language and illustrate its peculiarities and expressiveness by means of several examples. "^^ . "2007" . . "4711" . . "Springer"^^ . . "Springer"^^ . . . . . . . . . . . . . . . . . . . . . . . "Rosario"^^ . "Pugliese"^^ . "Rosario Pugliese"^^ . . "Zhiming"^^ . "Liu"^^ . "Zhiming Liu"^^ . . "Jim"^^ . "Woodcock"^^ . "Jim Woodcock"^^ . . "Francesco"^^ . "Tiezzi"^^ . "Francesco Tiezzi"^^ . . "Cliff"^^ . "B. Jones"^^ . "Cliff B. Jones"^^ . . "Alessandro"^^ . "Lapadula"^^ . "Alessandro Lapadula"^^ . . . . . . "COWS: A Timed Service-Oriented Calculus (PDF)"^^ . . . . . . . . . . . "cows_ictac_2007c.pdf"^^ . . . "COWS: A Timed Service-Oriented Calculus (Image (JPEG))"^^ . . . . . . "preview.jpg"^^ . . . "COWS: A Timed Service-Oriented Calculus (Indexer Terms)"^^ . . . . . . "indexcodes.txt"^^ . . "HTML Summary of #418 \n\nCOWS: A Timed Service-Oriented Calculus\n\n" . "text/html" . . . "QA75 Electronic computers. Computer science"@en . .