Mapping WS-CDL and BPEL into CSP for Behavioural Specification and Verification of Web Services

Yeung, Wing Lok

doi:10.1109/ecows.2006.26

Cited by 26 publications

(12 citation statements)

References 6 publications

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“…Foster, et al [5] analyzed the behavioral properties of composite WSs, while he presented another formal approach by using the CSP algebra to formalize WS-CDL and checked for behavioral consistency by model checking in [9]. An approach to verify BPEL specifications against WS-CDL choreographies was given in [1][2][3], based on CSP. Both of them did not demonstrate their work with the model checking tools.…”

Section: Related Workmentioning

confidence: 98%

“…The WS-CDL is an XML-based language that describes peer-to-peer collaborations of participants by defining, from a global viewpoint, their common and complementary observable behavior, where ordered message exchanges result in accomplishing a common business goal [1] . The WSs specifications offer a communication bridge between the heterogeneous computational environments used to develop and host applications.…”

Section: Overview Of the Ws-cdlmentioning

confidence: 99%

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Model checking web services choreography in process analysis toolkit

Zhou

et al. 2010

J. Shanghai Univ.(Engl. Ed.)

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Web service (WS) is an emerging software technology, especially acting an important role in cloud computing. The WS choreography description language (WS-CDL) is the standard for modeling the observable behavior of WS composition across multiple participants from a global point of view. However, it lacks of a formal semantics and could easily lead to misunderstanding and different implementations. In this paper, the WS-CDL based specifications are formally extracted in a communicating sequential process supporting a formal approach to checking WS models. In addition, formalisms and model checking are explicitly illustrated through a simple but non-trivial example with the help of model checker process analysis toolkit (PAT).

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Section: Related Workmentioning

confidence: 98%

Section: Overview Of the Ws-cdlmentioning

confidence: 99%

Model checking web services choreography in process analysis toolkit

Zhou

et al. 2010

J. Shanghai Univ.(Engl. Ed.)

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“…To formally debug the BPEL specification and verify interesting properties that are hard to be tested, various formal methods have been used, such as automata-related models [4], [5], [18], Petri nets [10], [12], and process calculi [11], [19].…”

Section: Introductionmentioning

confidence: 99%

A Chu spaces semantics of control flow in BPEL

Xing

Zhou

2009

2009 IEEE Asia-Pacific Services Computing Conference (APSCC)

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We present a Chu spaces semantics of typical control flow of BPEL including fault handling and link semantics. BPEL cf is proposed as a simplification of this subset of BPEL. For the compositional modeling of BPEL, we present a Chu spaces process algebra consisting of seven operators. These operators allow faults to be thrown at any point of execution and take link-based synchronization into consideration. We present the abstract syntax of BPEL cf , the semantic algebra, and the valuation functions for computing the Chu spaces denotation of BPEL cf programs. The valuation functions are straightforward because of the power of the Chu spaces process algebra.

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“…When the scaling term is unknown and is replaced by an estimate based on the data, the test statistic (under certain conditions) follows a Student's t distribution. Enter T-table at (n1+n2-2) degrees of freedom i.e., 4+4-2=6 The calculated value is 2.88 and Tabulated value for 6 degrees of freedom in p=0.05 is=2.45 in table [21].…”

Section: Ttestmentioning

confidence: 99%