Whether that service is defined as the processing of data or the act of carrying out a specific task, the business entity must believe it is performing work for others as an occupation or a business.
无论服务被定义为处理数据，还是实现特殊任务的行为，商业实体必须相信，它是作为一种职业或者商业为其它的商业实体提供服务。
Level 2 provides a further level of decomposition into specific processing areas, such as order handling or loyalty retention.
第2级提供进一步的分解级别，分解为具体的处理区域，如订单处理或老客户关系巩固。
Those actions can specify that a specific business process is invoked, that a service is called, or that derived events are generated and put back into the system for further processing.
这些动作可以指定调用某一个业务流程、调用某一个服务，或生成派生事件并将其放回系统进行进一步处理。
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