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Web services allow organizations to capture their human and software-based capabilities as modular software components that are called remotely over a network. In such service-oriented settings, it is important to establish an agreement that sets the obligations of the service provider and the expectations of the service consumer. Since traditional approaches such as Service Level Agreements (SLAs)...
Research in transactions planning has recognized the evolvement of Web Services as an industry standard to implement transactional business processes. We proposed a data modeling and contracting framework for Web services and in this paper we are exploring how our framework can help formally verify data integrity properties in an ad-hoc transaction.
Data-centric Web services are services whose behavior is determined by their interactions with a repository of stored data. The lack of data specification in current Web service standards potentially leads to erroneous use of these services by their consumers. In this work, we propose using formal data contracts to decrease ambiguity about a service behavior, to fully verify a composition of services,...
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