在BPEL业务流程中进行此工作的一个简单方法是执行活动前检索业务规则，此业务规则返回一个boolean值，指示此活动是已启用还是已禁用。
A simple way of doing this within a BPEL business process is retrieving a business rule before performing an activity which returns a Boolean indicating if the activity is enabled or disabled.
甚至也可以根据业务上下文检索一些服务。
Services can therefore be retrieved depending on the business context.
这允许进行更有意义的业务数据检索，并支持附加的场景。
This allows for the retrieval of more meaningful business data and for the support of additional scenarios.
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