Usability is a quality attribute that assesses how easy user interfaces are to use. The word "usability" also refers to methods for improving ease-of-use during the design process.
It is important to realize that usability is not a single, one-dimensional property of a user interface. Usability is a combination of factors including:
Usability is defined by 5 quality components:
Ease of learning - How fast can a user who has never seen the user interface before learn it sufficiently well to accomplish basic tasks?
Efficiency of use - Once an experienced user has learned to use the system, how fast can he or she accomplish tasks?
Memorability - If a user has used the system before, can he or she remember enough to use it effectively the next time or does the user have to start over again learning everything?
Error frequency and severity - How often do users make errors while using the system, how serious are these errors, and how do users recover from these errors?
Subjective satisfaction - How much does the user like using the system?
It is important to realize that usability is not a single, one-dimensional property of a user interface. Usability is a combination of factors including:
Usability is defined by 5 quality components:
Ease of learning - How fast can a user who has never seen the user interface before learn it sufficiently well to accomplish basic tasks?
Efficiency of use - Once an experienced user has learned to use the system, how fast can he or she accomplish tasks?
Memorability - If a user has used the system before, can he or she remember enough to use it effectively the next time or does the user have to start over again learning everything?
Error frequency and severity - How often do users make errors while using the system, how serious are these errors, and how do users recover from these errors?
Subjective satisfaction - How much does the user like using the system?
1 comment:
Thanks for the tips as they are certainly helpful. Besides those I’d also like to add one point if you allow me to do so whenever you’re doing testing make sure that you focus on that also. Thus that will be more productive.
Usability Testing Tool
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