Abstract (EN)

In distributed software contexts, Web Services (WSs) thatprovide transactional properties are useful to guarantee reliable TransactionalComposite WSs (TCWSs) execution and to ensure the wholesystem consistent state even in presence of failures. Fails during the executionof a TCWS can be repaired by forward or backward recoveryprocesses, according to the component WSs transactional properties. Inthis paper, we present the architecture and an implementation of a framework,called FaCETa, for efficient, fault tolerant, and correct distributedexecution of TCWSs. FaCETa relies on WSs replacement, on a compensationprotocol, and on unrolling processes of Colored Petri-Nets tosupport fails. We implemented FaCETa in a Message Passing Interface(MPI) cluster of PCs in order to analyze and compare the behavior ofthe recovery techniques and the intrusiveness of the framework.