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Erschienen in:
2005 | OriginalPaper | Buchkapitel
: A Tool for Automatic Composition of e-Services Based on Logics of Programs
verfasst von : Daniela Berardi, Diego Calvanese, Giuseppe De Giacomo, Maurizio Lenzerini, Massimo Mecella
Erschienen in: Technologies for E-Services
Verlag: Springer Berlin Heidelberg
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In this paper we discuss an effective technique for automatic service composition and we present the prototype software that implements it. In particular, we characterize the behavior of a service in terms of a finite state machine. In this setting we discuss a technique based on satisfiability in a variant of Propositional Dynamic Logic that solves the automatic composition problem. Specifically, given
(i)
a client specification of his
desired service
, i.e., the service he would like to interact with, and
(ii)
a set of available services, our technique synthesizes the orchestration schema of a composite service that uses only the available services and fully realizes the client specification. The developed system is an open-source software tool, called
$\mathcal {ESC}$
(
e
-
s
ervice
c
omposer), that implements our composition technique starting from services, each of them described in terms of a WSDL specification and a behavioral description expressed in any language that can capture finite state machines.