6533b859fe1ef96bd12b7583

RESEARCH PRODUCT

A Formal Semantics and a Client Synthesis for a BPEL Service

Patrice MoreauxSerge HaddadSylvain Rampacek

subject

Computer sciencecomputer.internet_protocolProgramming languageDistributed computingFormal semantics (linguistics)computer.file_formatAbstract processcomputer.software_genreAutomatonBusiness Process Execution LanguageDiscrete time and continuous timeExecutableWeb servicecomputer

description

A complex Web service described with languages like BPEL4WS, consists of an executable process and its observable behaviour (called an abstract process) based on the messages exchanged with the client. The abstract process behaviour is non deterministic due to the internal choices during the service execution. Furthermore the specification often includes timing constraints which must be taken into account by the client. Thus given a service specification, we identify the synthesis of a client as a key issue for the development of Web services. To this end, we propose an approach based on (dense) timed automata to first describe the observable service behaviour and then to build correct interacting clients when possible. The present work extends a previous discrete time approach and overcomes its limitations.

https://doi.org/10.1007/978-3-540-77581-2_27