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| Criterion |  Innovation Double Diamond |  Operations Root Cause Analysis |  Innovation TRIZ |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | For complex problems with a fuzzy situation, the method cleanly separates search space and decision. It first creates breadth in understanding and then focus in elaboration. This brings open questions, problem definition, and solution path into a traceable movement. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | 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 | Medium | High | Low |
Timedifferent | Wochen bis Monate | 1-4 h | 1-4 h | 15-30 min |
Participantsdifferent | 3-12 | 3-8 | 2-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Contradiction Statement, Inventive Principles, Solution Concepts | Root cause notes, Countermeasures |
Tagsno overlap | ProcessDivergenceInnovation | Root causeProblem solvingQualityIncident | InnovationProblem solvingContradictionsCreativity | Root causeIncidentLeanProblem solving |