JoeLaptops Inc从ACME接收购买订单请求，然后立即发回一个消息，告知请求收到。
JoeLaptops Inc receives the purchase order request from ACME and immediately sends back a message acknowledging receipt of the request.
ACME PO Requester流程接着开始与与JoeLaptops Inc进行公共电子商务对话，并且发出购买订单请求。
The requester process then begins a public e-business dialogue with JoeLaptops Inc of placing a purchase order request.
同时，在JoeLaptops公司，Place PO流程调用Sales Agent，一个内部Web服务，然后将ACME的购买订单请求传到Sales Agent。
Meanwhile at JoeLaptops Inc, the Place PO process invokes the Sales Agent, an internal Web service, and passes ACME's purchase order request to the Sales Agent.
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