relation: http://eprints.imtlucca.it/401/
title: A WSDL-based type system for asynchronous WS-BPEL processes
creator: Lapadula, Alessandro
creator: Pugliese, Rosario
creator: Tiezzi, Francesco
subject: QA75 Electronic computers. Computer science
description: We tackle the problem of providing rigorous formal foundations to current software engineering technologies for web services, and especially to WSDL and WS-BPEL, two of the most used XML-based standard languages for web services. We focus on a simplified fragment of WS-BPEL sufficiently expressive to model asynchronous interactions among web services in a network context. We present this language as a process calculus-like formalism, that we call ws-calculus, for which we define an operational semantics and a type system. The semantics provides a precise operational model of programs, while the type system forces a clean programming discipline for integrating collaborating services. We prove that the operational semantics of ws-calculus and the type system are ‘sound’ and apply our approach to some illustrative examples. We expect that our formal development can be used to make the relationship between WS-BPEL programs and the associated WSDL documents precise and to support verification of their conformance. 
publisher: Springer
date: 2011
type: Article
type: PeerReviewed
identifier:   Lapadula, Alessandro and Pugliese, Rosario and Tiezzi, Francesco  A WSDL-based type system for asynchronous WS-BPEL processes.  Formal Methods in System Design, 38 (2).  pp. 119-157.  ISSN 0925-9856      (2011)  
relation: http://dx.doi.org/10.1007/s10703-010-0110-0
relation: 10.1007/s10703-010-0110-0