The NSOV-4 subviews help to determine the functional activities that actually support the services.

The information in these subviews derives from the model in the repository. This is not explicit information that is specified by the designer as is the case in NSOV-3.

A comparison can then be made of the intent declared in NSOV-3 based on the designer knowledge and the results computed from the study of the possible support by the functional processes (NOV-5).

The NSOV-4 reports shows this potential support through a comparison of the information flows that result from a functional activity and the information flow that is defined as a result in the exchange protocols displayed by the services. If the same results are retrieved, this could be a hint t o determine that a particular activity can be used to support a particular service.