This section describes the roles of the sample program components shown in 2.1 System configurations of sample programs.

• Service requester
  An application program that uses a service. This component sends a service calling request (request message) to the HCSC server. The service requester in the sample program uses SOAP Communication Infrastructure.
  
• Standard reception
  A function (interface) for receiving a service component request message from the service requester. This component is provided as a function of the HCSC server.
  
• User-defined reception
  A function (interface) for receiving a service component request message from the service requester. For this component, unlike the standard reception provided as a function of the HCSC server, the user can define any interface.
  
• Business process
  The processing order and processing conditions of services, and other information defined as a sequence of tasks.
  
• Service adapter
  A function that receives a request from the service requester or business process and calls a service. This component exists on the HCSC server. This component returns the results of calling a service to the business process or service requester as a response message.
  
• Service component
  A business-processing program. This component executes the processing requested by the service requester.
  
• HCSC server
  A server function that manages the service adapter and business process to execute a service. This component exists in the service platform.
  
• J2EE server
  A server function required to execute a J2EE application (application consisting of JSPs, servlets, enterprise beans, and other items).