Title :
An Operational Approach to BPEL-like Programming
Author :
Huibiao Zhu ; Jifeng He ; Geguang Pu ; Jing Li
Author_Institution :
East China Normal Univ., Shanghai
fDate :
March 6 2007-Feb. 8 2007
Abstract :
Web services have become more and more important during these years and BPEL4WS (BPEL) is to be a standard for the Web services composition and orchestration. It contains several distinct features, including the scope-based compensation and fault handling mechanism. In this paper, we formalize an operational semantics for BPEL, which provides the precise understanding of the language. In order to explore program equivalence, bisimulation is introduced for BPEL pro grams in the form of two-layer structure. A set of algebraic laws is studied, which includes several BPEL featured laws. These algebraic laws are verified via the two-layer bisimulation. This reflects that our bisimulation is a practical approach to explore program equivalence for Web services.
Keywords :
Web services; algebra; fault tolerant computing; BPEL-like programming; BPEL4WS; Web services; algebraic laws; fault handling mechanism; operational semantics; program equivalence; scope-based compensation; two-layer bisimulation; Access control; Calculus; Computer languages; Helium; Information systems; Security; Software engineering; Software standards; Web and internet services; Web services;
Conference_Titel :
Software Engineering Workshop, 2007. SEW 2007. 31st IEEE
Conference_Location :
Columbia, MD
Print_ISBN :
978-0-7695-2862-5
DOI :
10.1109/SEW.2007.56
