When enabling Coverage for a MockService , soapUI will continuously accumulate and analyze mock requests or responses and add their coverage to the Coverage Panel. This collects the following 2 measurements:
Client Coverage : how much of the WSDL contract that your client is actually submitting.
Mock Coverage : how much of the contract your Mock is actually mocking
When collecting coverage for a MockService, the Coverage Panel contains the Interface-related part of the Coverage Tree and the containing MockService and its MockOperations; under each MockOperation the actual exchanged messages are shown.