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| Criterion |  Innovation TRIZ |  UX Research Card Sorting |  Operations A3 Problem Solving |  Operations Kaizen Event |
|---|---|---|---|---|
Purposedifferent | For technical contradictions or trade-offs, the method looks for solutions that resolve opposing requirements at the same time. It translates limits into an explicit picture of conflict that becomes workable. This produces not just compromises but more elegant principles. | When content only makes sense internally and users can't find the structure again, card sorting exposes their mental order. Terms, groups, and naming are then aligned with the target group's expectations. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | For a tightly scoped process segment with noticeable waste, the method bundles shared energy for change. It suits situations that call for fast learning loops and visible adjustments. |
Complexitydifferent | High | Low | Medium | Medium |
Timedifferent | 1-4 h | 20-45 min | 45-90 min | 0.5-5 Tage |
Participantsdifferent | 2-8 | Based on research question | 2-5 | 4-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Contradiction Statement, Inventive Principles, Solution Concepts | Content groups, Label set, IA hypotheses | A3 Report, Action Plan, Root Cause Analysis | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update |
Tagsno overlap | InnovationProblem solvingContradictionsCreativity | Information architectureNavigationStructure | LeanProblem solvingCoachingOperations | LeanContinuous improvementOperations |