You can preview the contents of the WSDL file on the
WSDL
view of a web service.
When you create a web service from a WSDL object, you can view the contents of the WSDL file.
When you manually create a web service, the Developer tool generates the contents of a WSDL file based on the configuration of the operation input, operation output, operation fault, and headers. You add elements to the schema of the WSDL or edit elements in the schema of the WSDL. You can also delete imported schema object from the WSDL.
Each operation input, operation output, operation fault, and header corresponds to a message in the WSDL. Operation faults and headers can share messages in a WSDL. When you use an element from the schema of the WSDL to create a fault or a header, the message name is the same as the element name.
You can view the WSDL design or the WSDL source. The WSDL design displays the hierarchical view of the WSDL contents. The WSDL source displays the content of the WSDL in an XML format.