A frequent source of errors is forgetting to put an application object on the session before calling the rules engine.

出现错误的一个常见原因是，在调用规则引擎之前忘了将应用程序对象放到会话中。

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This usually boils down to calling the migration tool with the relevant parameters and feeding it the pre-processed source data.

这通常使用相关的参数调用移植工具，并且将预处理的源数据传给它。

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If the calling component (or source) initiates the interaction synchronously, SCA will switch the interaction to be asynchronous.

如果调用组件(或源)以同步方式发起了交互，sca会将此交互切换为异步方式。

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"These prosecutors are calling a hundred witnesses from all agencies, and they're being dragged here to say nothing, " the source said.

CNN: By Paul Courson/