A semantical framework to engineering WSBPEL processes

Abstract

Web services promise the interoperability of various applications running on heterogeneous platforms over the Internet, and are gaining more and more attention. Web service composition refers to the process of combining Web services to provide value-added services, which has received much interest in supporting enterprise application integration. Industry standards for Web Service composition, such as WSBPEL, provide the notation and additional control mechanisms for the execution of business processes in Web Service collaborations. However, these standards do not provide support for checking interesting properties related to Web Service and process behaviour. In an attempt to fill this gap, we describe a formalization of WSBPEL business processes, that adds communications semantics to the specifications of interacting Web Services, and uses a formal logic to model their dynamic behaviour thus enabling their formal analysis and the inference of relevant properties of the systems being built.

Dealing with change in process choreographies: Design and implementation of propagation algorithms

“…We further assume well-behavedness of the change operation in terms of structure and semantics. Recently, several proposals were made on checking the soundness of choreographies in terms of compatibility and consistency [15,24–28] .…”

A Guarded Workflow Language and Its Formal Semantics

“…Many of the existing languages have been given a formal semantics: for example, from BPMN to CSP [14], [15], to Petri Nets [16]; from BPEL to Petri Nets [17], [18], to event calculus [19], to timed automata [20], to pattern-based constructs [21], [22], or to the axiomatic system of Hoarelogic [23]; or from workflow patterns to Petri Nets [24], [25]. More generally, the question of validating or verifying workflows has been examined in terms of the π calculus [26] and Petri Nets [27].…”