Architecting and designing > DoDAF > DoDAF 1.5 Activity Based Methodology (ABM) > Developing operational views with DoDAF ABM > ABM syntax rules > Activity outputs must be different from their inputs
  
Activity outputs must be different from their inputs
An Activity must have a different output than its input.
This means the following diagram is not valid:
This graphic is described in the surrounding text.
The following example is valid:
This graphic is described in the surrounding text.
See also
ABM syntax rules