7.2 Usability

usability

how easy it is to use a product/system

usability objectives

usefulness, effectiveness, learnability, likeability

enhanced usability

development that extends usability, improves product acceptance + user experience
- e.g. speech recognition, TTS

good user product interfaces

low user error, user satisfaction, simple/intuitive use; influences reputation + product acceptance/failure

population stereotypes

concern how products operate in different regions; e.g. left vs. right hand drive, on/off switches