To create a SvcV-4 Services Functionality Description diagram
- Create Functions.
 - Create or reuse (recommended) Service Accesses from SV-1, SV-2.
 - Use Is Capable of Performing relationship to connect the Service Accesses and Functions.
 - Use Compositions (whole-part relationships) to connect the Functions if necessary.
 - Use an Implements relationship to connect the Functions and Operational Activities from OV-5.