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| Criterion |  UX Research Usability Testing |  Innovation Contradiction Analysis |  Operations 5 Whys |
|---|---|---|---|
Purposedifferent | 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. | When a system should improve while another measure suffers as a result, the method makes the underlying conflict precisely formulable. It separates the desired effect from its side effect. This makes solutions possible that address the contradiction deliberately instead of half-heartedly. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 1-2 h je Session | 60-120 min | 15-30 min |
Participantsdifferent | Based on research question | 2-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Usability Issues, Severity List, Recommendations | Contradiction Statement, Abstraction Notes, Solution Principles, Concept Ideas | Root cause notes, Countermeasures |
Tagsno overlap | ValidationUXPrototype | ContradictionsInnovationProblem solving | Root causeIncidentLeanProblem solving |
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