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| Criterion |  Operations Gemba Walk |  Decision Making Delphi Method |  Operations Process Mapping |  Product Strategy DIBB |
|---|---|---|---|---|
Purposedifferent | When there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. | When knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | With a confusing workflow that has many handoffs, the method makes the actual process visible. It shows where work is passed on, delayed, or duplicated, so improvement targets the right spots. | DIBB helps clarify target groups, value, goals, and priorities by making the logic behind a decision explicit. It captures results as a DIBB document, belief list, bet list, and learning report. |
Complexitydifferent | Low | High | Medium | Low |
Timedifferent | 30-120 min | 1-4 Wochen | 1-3 h | 1-2 h |
Participantsdifferent | 2-6 | 6-30 Experten | 3-10 | 2-8 |
Formatdifferent | Workshop | Async | Workshop | Workshop + async |
Outputdifferent | Observation Notes, Improvement Ideas | Expert Forecast, Consensus Range, Assumption Notes | Process Map, Handoff List, Improvement Backlog | DIBB document, Belief list, Bet list, Learning report |
Tagsno overlap | LeanObservationProcessOperations | ForecastingExpertsDecisionStrategy | ProcessOperationsImprovement | StrategyDecisionAssumptionsHypothesis |