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| Criterion |  Innovation Double Diamond |  Operations Root Cause Analysis |  Innovation Rapid Ideation |  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. | When a decision needs to be prepared quickly, the method generates many solution-close variants in a short time. It deliberately relies on pace to undercut self-censorship and perfectionism. This quickly produces a usable field for prioritization and further work. | 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 | Low |
Timedifferent | Wochen bis Monate | 1-4 h | 5-20 min | 15-30 min |
Participantsdifferent | 3-12 | 3-8 | 1-20 | 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 | Ideenpool, Roh-Shortlist, Cluster | Root cause notes, Countermeasures |
Tagsno overlap | ProcessDivergenceInnovation | Root causeProblem solvingQualityIncident | BrainstormingIdeationDivergenceSpeed | Root causeIncidentLeanProblem solving |