A measure of how well the system interacts with end-users. Typical definitions refer to
SoftwareUsability as a composition of several factors, such as:
- Learnability
- Efficiency/Throughput
- User Appeal / Subjective Satisfaction
- Memorability (note this can differ from learnability - e.g. it's hard to learn to ride a bike, but easy to remember how to do it)
- Usefulness.
The discipline concerned with studying and improving usability is
HumanComputerInteraction.
--
MichaelMahemoff
Software which is usable is
OnMySide, and doesn't get
InMyWay.