Acme can still use the core BPEL4WS processes for process automation, but the company needs another module on the outside interface of the service to converse with the customer.

Acme可以仍旧把核心BPEL4WS流程用于流程的自动化，但是这个公司需要另一个位于服务接口之外的与客户对话的模块。

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PresenseMonitorServerWAR.war: This is the core code described above that exposes a Web service interface on one side and an SIP interface on the other.

war：这是上文介绍的核心代码，一方面公开 Web 服务接口，另一方面公开 SIP 接口。

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The system structure is a multilayer system structure with five layers. They are user interactive layer, system program interface layer, mining core service layer, data access layer, database layer.

系统使用五层体系结构，分别为：用户交互层，系统编程接口层，挖掘核心服务层，数据库访问层，数据库。

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