eprintid: 401
rev_number: 8
eprint_status: archive
userid: 31
dir: disk0/00/00/04/01
datestamp: 2011-06-15 14:39:12
lastmod: 2011-07-11 14:35:29
status_changed: 2011-06-15 14:39:12
type: article
metadata_visibility: show
item_issues_count: 0
creators_name: Lapadula, Alessandro
creators_name: Pugliese, Rosario
creators_name: Tiezzi, Francesco
creators_id: 
creators_id: 
creators_id: francesco.tiezzi@imtlucca.it
title: A WSDL-based type system for asynchronous WS-BPEL processes
ispublished: pub
subjects: QA75
divisions: CSA
full_text_status: none
keywords: Web services –  WSDL  –  WS-BPEL  – Process calculi – Type systems 
note: © Springer Science+Business Media, LLC 2010. The original publication is available at www.springerlink.com. The work presented in this paper is a much extended and revised version of Lapadula A, Pugliese R, Tiezzi F (2006) A WSDL-based type system for WS-BPEL. In: COORDINATION. LNCS, vol 4038. Springer, Berlin, pp 145–163.  http://eprints.imtlucca.it/id/eprint/419
abstract: 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. 
date: 2011
date_type: published
publication: Formal Methods in System Design
volume: 38
number: 2
publisher: Springer
pagerange: 119-157
id_number: 10.1007/s10703-010-0110-0
refereed: TRUE
issn: 0925-9856
official_url: http://dx.doi.org/10.1007/s10703-010-0110-0
funders: Partially supported by EU Project “Software Engineering for Service-Oriented Overlay Computers” (SENSORIA), IST-2005-016004.
citation:   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)