In recent years, WS-BPEL has become a de facto standard language for the 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 first 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 best-known freely available WS-BPEL engines. We show that, in fact, these engines implement different semantics, which undermines the portability of WS-BPEL programs over different platforms. Then we introduce View the MathML sourceBlite, a prototypical orchestration language equipped with a formal operational semantics, which is closely inspired by, but simpler than, WS-BPEL. Indeed, View the MathML sourceBlite is designed around some of WS-BPEL’s distinctive features such as partner links, process termination, message correlation, long-running business transactions, and compensation handlers. Finally, we present View the MathML sourceBliteC, a software tool supporting a rapid and easy development of WS-BPEL applications via the translation of service orchestrations written in View the MathML sourceBlite into executable WS-BPEL programs. We illustrate our approach by means of a running example borrowed from the official specification of WS-BPEL.
Using formal methods to develop WS-BPEL applications / A. Lapadula; R. Pugliese; F. Tiezzi. - In: SCIENCE OF COMPUTER PROGRAMMING. - ISSN 0167-6423. - STAMPA. - 77(3):(2012), pp. 189-213. [10.1016/j.scico.2011.03.002]
Using formal methods to develop WS-BPEL applications
PUGLIESE, ROSARIO;F. Tiezzi
2012
Abstract
In recent years, WS-BPEL has become a de facto standard language for the 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 first 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 best-known freely available WS-BPEL engines. We show that, in fact, these engines implement different semantics, which undermines the portability of WS-BPEL programs over different platforms. Then we introduce View the MathML sourceBlite, a prototypical orchestration language equipped with a formal operational semantics, which is closely inspired by, but simpler than, WS-BPEL. Indeed, View the MathML sourceBlite is designed around some of WS-BPEL’s distinctive features such as partner links, process termination, message correlation, long-running business transactions, and compensation handlers. Finally, we present View the MathML sourceBliteC, a software tool supporting a rapid and easy development of WS-BPEL applications via the translation of service orchestrations written in View the MathML sourceBlite into executable WS-BPEL programs. We illustrate our approach by means of a running example borrowed from the official specification of WS-BPEL.File | Dimensione | Formato | |
---|---|---|---|
12SCP-Using formal methods to develop WS-BPEL applications.pdf
Accesso chiuso
Tipologia:
Versione finale referata (Postprint, Accepted manuscript)
Licenza:
Tutti i diritti riservati
Dimensione
1.57 MB
Formato
Adobe PDF
|
1.57 MB | Adobe PDF | Richiedi una copia |
I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.