Users and goals

• Effectiveness
• Efficiency
• Satisfaction

Terms of use
Methods of research

User interface design

• Visual graphic design
• Prototyping

Usability evaluation

• Heuristic evaluation
• Cognitive walkthrough
• Compared evaluation

Usability testing

ROI usability

Usability � according ISO-9241, The extent to which a product can be used by specified users to achieve specified goals with effectiveness, efficiency and satisfaction in a specified context of use.
According ISO-9126, The capability of the software to be understood, learned, used and liked by user, when used under specified conditions.

Users and Goals | Effectiveness | Efficiency | Satisfaction | Methods