They are also not conducive to dynamic process selection - that is, parts of the process model cannot be easily replaced at execution time.
它们也不支持动态流程选择——也就是说，流程模型的各个部分无法在执行期间轻松替换。
Using a selection policy, the global model decides on which Web service, amongst those returned in the search results, will be used to fulfill the role within the business process.
全局模型使用选择策略，判定返回的搜索结果中哪个Web服务将被用于履行商业流程中的角色。
This model illustrates a policy enforcement point in the process flow using the Apply manufacturing Plant Selection task and a manufacturing plant service invoke step.
这个模型使用 Apply manufacturing Plant Selection 任务和生产厂商服务调用步骤，图示了流程流中的一个策略执行点。
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