don norman’s interlocks and forcing...
TRANSCRIPT
Don Norman’s Interlocks and Forcing Functions
Jim Rowan Georgia Gwinnett College ITEC 4130
Forcing Functions
Things (either physical or virtual) that force behavior
Come in the form of constraints – Interlocks – Lock-Ins – Lock-Outs
Interlocks
Physically block one action by placing the first task in the way of the second
Forcing Function
Lock-Ins – You can’t quit Powerpoint without either
saving your changes or intentionally disposing of them
Lockout