I’m coining the term Minimum Usable Design, and that is when you reach your 50% mark for your design. If you can’t use your design after you have reached 50% (or a person can’t understand at least 50% of what is going on) then you haven’t reached the 50% mark yet.
I have been thinking about this, how we can treat a design project not as a linear process from brief to goals, with a set of deliverable, but as a perpetual flux to maintain. And here’s Paul Scrivens summed it up beautifully along with the term – which he coined also – MUD: Minimum Usable Design.