effective design

Usability Characteristic: “Effective”

by Vishal Mehta January 21, 2011 Usability Characteristics

The first of the five usability characteristics – EFFECTIVE. Effectiveness is measured by the completeness and the accuracy with which the intended users achieve their specific goals. The typical characteristics of an effective user interface are: clear terminology – in the user’s language and appropriate to the task good, comprehensible choices on screen easy navigation; alternate [...]

1 comment Read the full article →

The Five Es of Usability

by Vishal Mehta January 19, 2011 Usability Dimensions

PREAMBLE. We saw the philosophical angle to various dimensions of usability in previous blog posts, with several examples. This series will focus on the practical dimensions – another, deeper view of the characteristics of usability: Whitney Quesenbery’s Five Es of Usability. With examples, of course. ISO 9241 defines usability as: The effectiveness, efficiency and satisfaction [...]

3 comments Read the full article →