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User Guide
The information contained in this section applies to IBM WebSphere Commerce Version 7.0.0.9 and Feautre Pack 8. The documentation also applies to all subsequent releases and modifications until otherwise indicated in new editions.
Developing
The topics in the Developing section describe tasks performed by an application developer.
Presentation layer
WebSphere Commerce uses Java Server Pages (JSP) to implement the view layer of the Model-View-Controller (MVC) design pattern. The view layer is in charge of retrieving data from the database through the use of data beans and formatting it to meet the display requirements. The view layers determines whether the request is sent to a browser or streamed out as XML. JSP files present a clean separation between data content and presentation.
Customizing IBM Sales Center
In the IBM Sales Center for WebSphere Commerce there is a set of user interface panels, views and dialogs that contain the most commonly used features. You can add to or configure the user interface to suit your needs, as well as changing the content and format of the data that is passed between the client and the server.
Communication services
Communicating with the server is handled by a communication service. The request is prepared by the service request handlers and the specified communication service is invoked to send the request to the server. The response that is returned by the communication service is given back to the request handler so that it can be unmarshalled.
Replacing the default communication service
Communicating with the server is handled by a communication service. The request is prepared by the service request handlers and the specified communication service is invoked to send the request to the server. This section explains how to replace the default communication service.

Replacing the default communication service

Communicating with the server is handled by a communication service. The request is prepared by the service request handlers and the specified communication service is invoked to send the request to the server. This section explains how to replace the default communication service.

About this task

To replace the default communication service:

Procedure

Define a new extension definition for the com.ibm.commerce.telesales.core.commServices extension point.
Use the com.ibm.commerce.telesales.configurator extension point to indicate that the new communication service will be used instead of the default IBM Sales Center Web service:
```
com.ibm.commerce.telesales.services.TsCommunication=newCommServiceID
```
All of the IBM Sales Center actions that were previously using the default IBM Sales Center communication service will now use your new communication service.