Usability

Test Plans

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Initial usability plans typically include a pretest with information about the participant's computer and Web skills, a list of tasks they are asked to complete (with optimal responses and notes to the test administrator), and a posttest that probes for a better understanding of their overall attitude towards the site. I developed this informal testing plan for the instructor side of a Web-based portfolio tool. We wanted to ensure that the test measured how instructors would use this tool in a real setting, so participants are given a number of scenarios to which they must respond.

Results Summaries

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During the course of the usability study, I compile participants' responses into a large document and determine what aspects of the tool are problematic. This is an example of one such document. In this case, we were testing three potential navigation design directions with a number of internal and external clients. I've noted the percentage of individuals who were able to successfully each task. in this way, I can determine where the functionality and/or design may need to be revisted to futher support user real-world use of the site.

Analyses

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After compiling and thoroughly examining videotapes of the usability proceedings and my notes, I create a list of suggested improvements that reflect the most serious usability issues. I created this particular document for a Web-based site creation tool.

• Identifying target objectives and creating a test plan that is workable given time, staffing, and monetary constraints
• Creating a suitable testing environment under less-than-ideal conditions
• Evaluating Web site features early in the development process using heuristic methods
• Recruiting participants and briefing observers on testing etiquette
• Analyzing participant responses and creating suggestions for interface improvements
• Briefing developers, designers, and management on testing results