Date of Original Version
ICSE ’11, May 21–28, 2011, Waikiki, Honolulu, HI, USA
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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 specication, could be more useful to a service
integrator for assessing that a certain external service
can contribute to fulll the functional requirements of the
Given the requirements specication 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
specication that characterizes the environment of the service
composition. The generated interfaces guarantee that
the service composition fullls 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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