When you create a SOAP web service from a WSDL data object, the WSDL defines one or more operations and the elements of each operation input, operation output, and operation fault.
You can add an operation if the WSDL has multiple operations that you can select from. You cannot create an operation that is not defined in the WSDL.
You must create a WSDL data object before you create a web service from a WSDL data object. The WSDL must be based on SOAP 1.1 or SOAP 1.2. You can use the
Create Web Service from a WSDL Data Object
wizard to create a WSDL data object before you create a web service from a WSDL data object.
When you create a web service from a WSDL data object, the web service is dependent on the WSDL data object. If you delete the WSDL data object, the operation mapping is not valid and you must associate a WSDL data object with the web service. The Developer tool removes the association between a web service and the WSDL data object when a WSDL data object is deleted from the repository.