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| Criterion |  UX Research Diary Study |  Decision Making OODA Loop |  Product Discovery Test Card |
|---|---|---|---|
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. | In dynamic situations, decisions become outdated faster than they can be prepared. The OODA Loop holds observing, orienting, deciding, and acting together as a recurring rhythm so reaction does not slide into inertia. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 1-4 Wochen | 15-60 min je Zyklus | 20-35 min |
Participantsdifferent | 5-20 | 1-8 | 1-5 |
Formatdifferent | Async | Workshop + async | Workshop + async |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Situation Assessment, Decision Loop, Action Updates | Test Card with a pre-set threshold |
Tagsno overlap | UX researchTrackingBehavior | DecisionChangeLearningStrategy | ExperimentsValidationDiscoveryHypothesis |
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