
"Most people make the mistake of thinking design is what it looks like. People think it's this veneer - that the designers are handed this box and told, 'Make it look good!' That's not what we think design is. It's not just what it looks like and feels like. Design is how it works."
Steve Jobs, CEO Apple Computer, Inc.as quoted in "The Guts of a New Machine", NY Times Magazine, November 30, 2003
The interaction process should be visually obvious through the design of the interface:
Goal
Steps
Status
Mandatory
Confirmation
Position
Correction
Define and reflect the Workflow appropriately.