View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Operations 5 Whys |  Innovation Brainstorming |  Operations Root Cause Analysis |  Innovation Rapid Ideation |
|---|---|---|---|---|
Purposedifferent | 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. | When a team faces an open question with many obvious directions, the method first creates breadth instead of premature commitment. It separates idea flow from evaluation and makes lines of thought visible, creating a pool for selection and further development. | 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. |
Complexitydifferent | Low | Low | Medium | Low |
Timedifferent | 15-30 min | 30-60 min | 1-4 h | 5-20 min |
Participantsdifferent | 2-6 | 4-12 | 3-8 | 1-20 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Root cause notes, Countermeasures | Idea pool, Theme clusters, Shortlist | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Ideenpool, Roh-Shortlist, Cluster |
Tagsno overlap | Root causeIncidentLeanProblem solving | BrainstormingIdeationCreativityWorkshopDivergence | Root causeProblem solvingQualityIncident | BrainstormingIdeationDivergenceSpeed |