Concept	Documentation
GFUEPreceivingINPUT	Specifies the Input of a Functional Usage.
GFUEPsendingOUTPUT	Specifies the Output of a Functional Usage.
General Function Usage Exchange Point	A parameter of a System or Context Function.
General Functional Usage	Specifies a General Usage of a General Function within one or more other General Functions.
General Functional Exchange	Specifies the fact that an General Functional Exchange between General Function Parameters is taking place.
GFEbeingPartOfGFNU	Specifies the fact that a Functional Exchange appears within a general Functiona Usage.
GFEfromGFUEP	Specifies the fact that a General Functional Exchange is coming from a General Functional Usage Exchange Point.
GFEtoGFUEP	Specifies the fact that a General Functional Exchange is going to a General Functional Usage Exchange Point.
GFNcontrolledAFTER	Specifies a sequential execution of Functions.
General Function	Specifies a General Function. It is used as base Class for specific System or Context Functions, or Partial Functions.