1. User interviews
2. Task analysis
4. Expert evaluations
To assess the usability of a medical device prior to involving users, UX specialists have a few tools at their disposal: heuristic assessment and cognitive walkthrough. The first consists of methodically analyzing the graphical interface of a system, page by page, based on a series of established criteria called heuristics. Several sets of criteria can structure such an analysis, such as the Ergonomic Criteria of Bastien and Scapin and the 10 usability heuristics by Jakob Nielsen.
Nielsen's 10 Usability Heuristics
5. Usability testing
During the Summative Evaluation — which aims to get objective evidence of the safety of use following the development process — it is crucial to mimic the actual user experience as closely as possible. At that point, we will use the final product in a realistic setting, and participants will be representative of the target users.