在通过业务过程流或人工方式处理案例时，会更新这个属性以反映案例的当前状态。
As the case progresses either via business process flows or manually, this property is updated to reflect the current state of the case.
因为状态不依赖于给定的调用堆栈，所以这种方式对于长期工作流这样的东西更稳定。
Because the state isn't dependent on a given call stack, the approach is more stable for things like long-duration workflows.
可以使用各种编程模式来实现服务，从业务过程流方式的 BPEL 流程，到状态机方式的事件管理，以及到声明性业务规则方式。
You can implement your services using a variety of programming paradigms, from process-flow style BPEL processes, to state machine-style event management, to declarative business rules style.
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