Web Service Atomic Transaction is an OASIS standard. To achieve all-or-nothing property for a group of services, it defines three protocols (completion, volatile two-phase commit, and durable two-phase commit), and a set of services. These protocols and services together ensure automatic activation, registration, propagation and atomic termination of Web Services. The protocols are implemented via the WS-Coordination context management framework and emulate ACID transaction properties.
Following the standard, a distributed transaction has a coordinator, an initiator, and one or more participants.
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