Heuristic Evaluation
Heuristic Evaluation is a usability inspection method where experts assess a product’s interface against established usability principles (heuristics). The most common set of heuristics, developed by Jakob Nielsen, includes principles like error prevention, consistency, and flexibility. Heuristic evaluations are efficient for identifying usability issues early in the design process.
Heuristic evaluation is one of the most cost-effective usability methods available — 3-5 expert reviewers applying Nielsen's 10 heuristics can surface 75-80% of a product's major usability problems without recruiting any users. For startups that can't afford full usability studies, a heuristic evaluation is a practical first pass that identifies obvious problems in hours, not weeks.
Reviewing a SaaS onboarding flow against Nielsen's heuristic of 'Visibility of System Status' might reveal that after a user uploads a file, nothing changes on screen for 4 seconds — violating the principle and creating the anxiety that the upload failed, a fix that takes an afternoon but meaningfully reduces support tickets.