List of Figures

A	No Smoking
B	Escape
C	Fire Exit
D	Exit/Escape
E	Valve Wheel
F	MAQUIS screen dump: High Guessability
G	MAQUIS screen dump: Low Guessability 1
H	MAQUIS screen dump: Low Guessability 2
I	Ami Pro screen dump
J	Write screen dump
K	Man-Machine Interface
L	Interaction Framework
M	Handles
N	Dalmation
O	Woman
P	Star Life Cycle
Q	Reuters: Customer Centered Design Process
R	Usability Laboratory