Functional Model Definitions
lFunctional model
»It is a picture, a graphical representation
»The overall function of a product is sub-divided into smaller, more elemental (i.e. atomic) sub-functions
»The sub-functions are connected by the flows on which they operate
lSub-functions
»Simpler expressions of part of the product’s overall function
»Expressed in verb-object form at a consistent level of detail