Current methods to represent system or task usability in a single metric do not include all the ANSI and ISO defined usability aspects: effectiveness, efficiency & satisfactio...
Retrospective Think aloud (RTA) is a usability method that collects the verbalization of a user's performance after the performance is over. There has been little work done t...
Zhiwei Guan, Shirley Lee, Elisabeth Cuddihy, Judit...
This paper investigates one of the existing methods for measuring usability – Logic Scoring Preference (LSP), and discusses the results of two formal experiments carried out to a...
The mobile phone has become one of the most popular products amongst today's consumers. The Mobile Phone Usability Questionnaire (MPUQ) was developed to provide an effective s...
Correlations between prototypical usability metrics from 90 distinct usability tests were strong when measured at the task-level (r between .44 and .60). Using test-level satisfac...