A mathematical model of the finding of usability problems
INTERCHI '93 Proceedings of the INTERCHI '93 conference on Human factors in computing systems
Testing web sites: five users is nowhere near enough
CHI '01 Extended Abstracts on Human Factors in Computing Systems
Sample sizes for usability tests: mostly math, not magic
interactions - Waits & Measures
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In this case study, we describe how we use measurements taken from web analytics and search log analysis with findings from usability testing to inform the development of web site. We describe an example of triangulating data taken from all three sources to help make design decisions; an example of drawing on web analytics and search log analysis to inform our choices of tasks during a measurement usability evaluation; and an example of using search log data to decide whether a new feature was worth investigating further. The context is enquirers making decisions about whether to pursue a course of study at a distance learning university: a long-term, complex problem.