relation: http://eprints.imtlucca.it/1563/
title: Using formal methods to develop WS-BPEL applications
creator: Lapadula, Alessandro
creator: Pugliese, Rosario
creator: Tiezzi, Francesco
subject: QA75 Electronic computers. Computer science
description: In recent years, WS-BPEL has become a de facto standard language for orchestration of Web Services. However, there are still some well-known difficulties that make programming  in WS-BPEL a tricky task. In this paper, we firstly point out major loose points of the WS-BPEL specification by means of many examples, some of which are also exploited  to test and compare the behaviour of three of the most known freely available WS-BPEL engines. We show that, as a matter of fact, these engines implement different  semantics, which undermines portability of WS-BPEL programs over different platforms. Then we introduce Blite, a prototypical orchestration language equipped with a formal  operational semantics, which is closely inspired by, but simpler than, WS-BPEL. Indeed, Blite is designed around some of WS-BPEL distinctive features like partner links, process termination, message correlation, long-running business transactions and compensation handlers. Finally, we present BliteC, a software tool supporting a rapid and easy development of WS-BPEL applications via translation of service orchestrations written in Blite into executable WS-BPEL programs. We illustrate our approach by means of a running example borrowed from the official specification of WS-BPEL.
publisher: Elsevier
date: 2012
type: Article
type: PeerReviewed
format: application/pdf
language: en
identifier: http://eprints.imtlucca.it/1563/1/LPT_scico.pdf
identifier:   Lapadula, Alessandro and Pugliese, Rosario and Tiezzi, Francesco  Using formal methods to develop WS-BPEL applications.  Science of Computer Programming, 77 (3).  pp. 189-213.  ISSN 0167-6423      (2012)  
relation: http://www.sciencedirect.com/science/article/pii/S0167642311000694
relation: 10.1016/j.scico.2011.03.002