Functional flow block diagrams (FFBDs) are a traditional tool of systems engineering and remain popular in some systems engineering domains. However, their lack of formal definition makes FFBDs ...

Some examples of functional models are use cases, data flow diagrams, and functional flow block diagrams. Add your perspective Help others by sharing more (125 characters min.) Cancel ...

Abstract: Functional flow block diagrams (FFBDs) are a traditional tool of systems engineering and remain popular in some systems engineering domains. However, their lack of formal definition makes ...