Architecting and designing : NATO Architecture Framework (NAF) : NAF v4 : Service Viewpoints : S4 – Service Functions: Decomposition
  
S4 – Service Functions: Decomposition
The S4 – Service Functions: Decomposition viewpoint of NAF v4 is a hierarchical diagram type that enables you to model or view the hierarchy of ServiceFunctions – parent ServiceFunctions and their child ServiceFunctions.
Parent topic
Service Viewpoints