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| Criterion | ![]() UX Research Diary Study | ![]() UX Research Usability Testing | ![]() Decision Making Assumption Surfacing | ![]() Product Discovery Concierge MVP |
|---|---|---|---|---|
Purposedifferent | When experiences build up over days or weeks and a single session cannot capture them, Diary Study records the course of everyday life. Recurring triggers, moods, and habits become visible this way, beyond the sharpness of memory. | When a product is built but people get stuck on tasks, usability testing shows the friction at concrete points. Observed use instead of self-report makes visible where orientation, understanding, or interaction breaks down. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | When an idea can first fail or grow through genuine hands-on support, it relies on manual work instead of automation. It shows whether user value holds up even under manual execution. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 1-4 Wochen | 1-2 h je Session | 45-90 min | 1-4 Wochen |
Participantsdifferent | 5-20 | Based on research question | 2-8 | 3-10 Kunden |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Usability Issues, Severity List, Recommendations | Assumption List, Critical Assumptions, Learning Plan | Concierge Learnings, Service Blueprint, MVP Risks |
Tagsno overlap | UX researchTrackingBehavior | ValidationUXPrototype | AssumptionsRiskDecisionDiscovery | MVPValidationServiceDiscovery |



