现在，我们将事务 定义为对应用程序状态的相关操作的集合。 事务具有原子性、一致性、隔离性 以及持久性 这几个属性。

We can now define a transaction as a related collection of operations on the application state, which has the properties of atomicity, consistency, isolation, and durability.

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设计合理的容错机制以维持流程中的ACID(原子性、一致性、隔离性和持久性)特性是设计soa解决方案的一大挑战。

Designing appropriate fault tolerant mechanisms to maintaining ACID (Atomicity, Consistency, Isolation and Durability) properties in process flows poses a big challenge in designing SOA solutions.

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WS-AT 可以确保以事务方式执行对这三种 Web 服务的调用，并向应用程序提供原子性、一致性、隔离性和持久性 (ACID) 语义。

WS-AT ensures that invocation of these three Web services is performed in a transactional fashion, providing Atomicity, Consistency, Isolation and Durability (ACID) semantics to the application.

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