In the Service Interface Editor (SIE), you can modify existing service interfaces by editing, deleting and/or renaming their attributes and details. You can modify a service interface that you created from scratch or a back-end service you downloaded and saved locally. You can:
Edit service interfaces, service operations, parameters, and faults.
Delete elements of the service interface.
You can thus customize your service interface by adding or removing elements, so that it is suitable for your needs.