- 1、Theordererroleisresponsibleforprocessingtheshippingschedule.2、Theserviceinterfaceconsistsoftworoles:invoicerandorderer.3、Theservicespecificationconsistsoftworoles:invoicerandorderer.4、Theprincipalshallimmediatelyinformtheordererabouttheabove-me...
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