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| Criterion |  Operations Learning Review |  Innovation TRIZ |  Operations 5 Whys |
|---|---|---|---|
Purposedifferent | After a project phase with mixed results, the method makes learning from the individual case reusable. It connects events, decisions, and systemic conditions into robust insights. | 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. | 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 | High | Low |
Timedifferent | 1-3 h | 1-4 h | 15-30 min |
Participantsdifferent | 3-10 | 2-8 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop |
Outputdifferent | Learning Review Notes, System Factors, Improvement Actions | Contradiction Statement, Inventive Principles, Solution Concepts | Root cause notes, Countermeasures |
Tagsno overlap | LearningRetrospectiveIncidentOperations | InnovationProblem solvingContradictionsCreativity | Root causeIncidentLeanProblem solving |
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Methods with strong topical overlap with the current selection, not yet in the comparison.
