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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.
Controller layer
The Controller layer is the conductor of operations for a request. It controls the transaction scope and manages the session related information for the request. The controller first dispatches to a command and then calls the appropriate view processing logic to render the response.
Management Center Web application
The Management Center Web application is a Struts web application that facilitates communication between the Management Center and WebSphere Commerce services.
Customizing the Management Center Web application
You can perform customization tasks in the Management Center Web application, such as extending existing objects, creating new objects, and mapping error reason codes to objects.
Extending existing objects
You can customize objects, actions, and error messages in the Management Center Web application.
Adding data to an existing Management Center object
Use the UserData element to add data to an existing Management Center object.

Adding data to an existing Management Center object

Use the UserData element to add data to an existing Management Center object.

About this task

Note: The Management Center Web application does not require any changes for this type of customization.

To add data to a Management Center object, for example information from a custom field that holds a customer's shoe size, use the UserData element in the request and response BODs. If this new data must be displayed to the user, make changes to the Management Center. When a custom property name is prefixed with xattr_, the UserData in the Noun will automatically be handled by the Management Center Web application and returned to the Management Center client. For information on adding custom data to the Management Center user interface, see Overview of customizing Management Center.

Note: Request attribute naming conventions: User defined request attribute names containing an underscore (_) are not supported.