View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Decision Making Wideband Delphi |  Operations 5 Whys |  Operations Root Cause Analysis |
|---|---|---|---|
Purposedifferent | A single opinion rarely holds up for planning when the future is genuinely uncertain. It separates options, evaluation criteria, and open risks. The result is captured as an Estimate Range, Assumption Log, and Expert Consensus Notes. | 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 problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. |
Complexitydifferent | High | Low | Medium |
Timedifferent | 1-4 h or multiple rounds | 15-30 min | 1-4 h |
Participantsdifferent | 4-12 Experten | 2-6 | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Estimate Range, Assumption Log, Expert Consensus Notes | Root cause notes, Countermeasures | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | EstimationExpertsForecasting | Root causeIncidentLeanProblem solving | Root causeProblem solvingQualityIncident |
Often compared together
Methods with strong topical overlap with the current selection, not yet in the comparison.
