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Model-Checking of Web Services Choreography

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4 Author(s)
Hongli Yang ; Coll. of Comput. Sci., Beijing Univ. of Technol., Beijing, China ; Xiangpeng Zhao ; Chao Cai ; Zongyan Qiu

Web services choreography describes the global model of service interactions among a set of participants. In order to achieve a common business goal, the protocols of interaction must be correct. In this paper, we model interactions with recordings of state/channel variable changes that can occur as a result of carrying out the interactions. Thus, it is possible to verify not only normal control flow properties such as deadlock-freeness, but also channel-passing related problems such as channel-absence. Concretely, we propose a small language CDL, together with an operational semantics. We illustrate with a T-Shirts procurement protocol how service choreographies can be specified in CDL, and how the verification can be carried out using the SPIN model-checker.

Published in:

Service-Oriented System Engineering, 2008. SOSE '08. IEEE International Symposium on

Date of Conference:

18-19 Dec. 2008