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| Criterion |  UX Research Diary Study |  Product Discovery Kano Model |  UX Research HEART Framework |  Engineering Goal Question Metric |
|---|---|---|---|---|
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 features need to be distinguished by their effect on satisfaction, it makes expectations and surprises comparable. It separates basic needs, performance contribution, and delight. | Helps clarify observations, needs, and patterns in concrete terms. It groups observations into patterns, questions, and decisions. The result is captured as a HEART-GSM table and dashboard. | Helps clarify technical problems, hypotheses, and next steps in concrete terms. It breaks a technical problem into testable parts. The result is captured as a GQM table and metric briefs. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 1-4 Wochen | 1-2 Tage | 120 min initial, dann laufend | 90-180 min |
Participantsdifferent | 5-20 | 10-50 | 3-6 | 3-6 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | Kano Matrix, Feature Classes, Priority Themes | HEART-GSM Table, Dashboard | GQM Table, Metric Profiles |
Tagsno overlap | UX researchTrackingBehavior | SatisfactionPrioritizationCustomer | MetricsUX researchMeasurementSatisfaction | MetricsMeasurementEngineeringAlignment |