Nielsen's approach is to test usability using one or preferably more real users.
In terms of usability: using the DateTime pattern causes a tooltip to appear containing this machine-readable data when the user hovers the mouse over the text content.
Despite the differences in usability, using these applications for comparison is reasonable because both represented our best effort and had above average usability.
RLOs were also evaluated for their educational value, learning support, media attributes and usability using closed and open questions.
After implementing the system, we conducted system usability evaluations using general usability scales and a usability scale designed for handheld AR.
Usability items used for the heuristic evaluation Interaction 1) Are the links to websites consistent throughout the website?
Project name: eMedOffice Project home page: http://sourceforge.net/projects/emedoffice/ Operating system(s): Platform independent Programming language: PHP Other requirements: Apache2, mod-php, MySQL License: GNU GPL Any restrictions to use by non-academics: GNU GPL This section presents the usability questionnaire used to evaluate the quality of the proposed learning game eMedOffice.
Guided by the recommendations of Usability.gov, we also assessed usability domains using Likert-scaled items addressing learnability (how easy it is to accomplish tasks the first time), success rate (login, question completion, viewing all necessary pages), possible barriers, efficiency (task time) [11,14].
Guided by the recommendations of Usability.gov, we also assessed usability domains using Likert-scaled items addressing learnability (how easy it is to accomplish tasks the first time), success rate (login, question completion, viewing all necessary pages), possible barriers, efficiency (task time) [ 11, 14].
Furthermore, quality metrics may differ by disciplinary perspective; different disciplines focus on assessing the usability of the Internet-delivered tool for supporting patients' decision making [ 21], on the usability of features of the user interface [ 22], and/or on the usability of using Internet delivery to extend patients' decision support programs into the community [ 17, 22].
