Date of Original Version

5-2011

Type

Conference Proceeding

Rights Management

ACM acknowledges that this contribution was authored or co-authored by a contractor or affiliate of the U.S. Government. As such, the Government retains a nonexclusive, royalty-free right to publish or reproduce this article, or to allow others to do so, for Government purposes only.

Abstract or Description

Service-based applications can be realized by composing existing services into new, added-value composite services. The external services with which a service composition interacts are usually known by means of their syntactical interface. However, an interface providing more information, such as a behavioral specification, could be more useful to a service integrator for assessing that a certain external service can contribute to ful fill the functional requirements of the composite application. Given the requirements specification of a composite service, we present a technique for obtaining the behavioral interfaces - in the form of labeled transition systems - of the external services, by decomposing the global interface speci fication that characterizes the environment of the service composition. The generated interfaces guarantee that the service composition fulfills its requirements during the execution. Our approach has been implemented in the LTSA tool and has been applied to two case studies.

 
 

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