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 Gemba Walk |  Product Discovery Outcome-Driven Innovation |  Operations Root Cause Analysis |  Operations A3 Problem Solving |
|---|---|---|---|---|
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. | Outcome-Driven Innovation clarifies customer problems, solution opportunities, and evidence. It separates jobs, desired outcomes, importance, satisfaction, and opportunity, and captures results as desired outcome statements, an opportunity landscape, and segments by underserved needs. | 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 a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. |
Complexitydifferent | Low | High | Medium | Medium |
Timedifferent | 30-120 min | Mehrere Wochen | 1-4 h | 45-90 min |
Participantsdifferent | 2-6 | 2-6 researchers plus sample | 3-8 | 2-5 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Observation Notes, Improvement Ideas | Desired outcome statements, Opportunity landscape, Segmentation by underserved needs, Innovation hypotheses | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | LeanObservationProcessOperations | OutcomesInnovationResearchQuantitative | Root causeProblem solvingQualityIncident | LeanProblem solvingCoachingOperations |