Linked from
The 15 pages that link to Usability testing, each with the reason it gives.
ErgonomicsRelated: Observed use can expose ergonomic problems before a design is adopted.
Plain languageRelated: Testing reveals whether people can actually find and use the information.
Software testingRelated: It examines user difficulties that requirement-focused checks may miss.
UsabilityRelated: Task observations reveal where users struggle and whether they reach their goals.
User guideRelated: Testing guide-based tasks exposes unclear instructions and missing information.