Providing fault tolerance for transactional Web services
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Web service-based transactional business processes require a high degree of reliability in order to guarantee consistent results. In case of failure, participants must take the necessary actions to leave the process in a globally-correct state. Conventional Web services, however, frequently lack essential reliability features. Based on the Web Services Transactions specifications, we present a framework that provides fault tolerance to the services involved in a transactional business process, leveraging techniques in logical logging and application recovery. In contrast to current implementations, it aims to minimize the impact on existing applications with regards to performance and code changes.