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 Process Mapping |  Operations 5 Whys |  Innovation Contradiction Analysis |  Operations Gemba Walk |
|---|---|---|---|---|
Purposedifferent | 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. | 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 system should improve while another measure suffers as a result, the method makes the underlying conflict precisely formulable. It separates the desired effect from its side effect. This makes solutions possible that address the contradiction deliberately instead of half-heartedly. | 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. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 1-3 h | 15-30 min | 60-120 min | 30-120 min |
Participantsdifferent | 3-10 | 2-6 | 2-8 | 2-6 |
Formatsame | Workshop | Workshop | Workshop | Workshop |
Outputdifferent | Process Map, Handoff List, Improvement Backlog | Root cause notes, Countermeasures | Contradiction Statement, Abstraction Notes, Solution Principles, Concept Ideas | Observation Notes, Improvement Ideas |
Tagsno overlap | ProcessOperationsImprovement | Root causeIncidentLeanProblem solving | ContradictionsInnovationProblem solving | LeanObservationProcessOperations |