You have selected the Web service you want to test.
You know the location of the endpoint you want to test.
You know the user name and password for the endpoints that require authentication.
When you select the Web service you want to test, the system loads the corresponding WSDL file. This file contains information about the endpoints configured on the selected system. You can choose one of these endpoints to run the test. If you have the same service running on a different system, you can choose to test one of its endpoints. To do this, you need to provide the location of the endpoint.
When the selected endpoint requires basic HTTP authentication, you can enter the logon data in advance. You can also set the timeout for the test.