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 Causal Factor Analysis |  Operations Gemba Walk |  Operations Barrier Analysis |
|---|---|---|---|---|
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 an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. | 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. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. |
Complexitydifferent | Medium | High | Low | Medium |
Timedifferent | 1-3 h | 2-6 h | 30-120 min | 2-4 h |
Participantsdifferent | 3-10 | 3-10 | 2-6 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Process Map, Handoff List, Improvement Backlog | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Observation Notes, Improvement Ideas | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | ProcessOperationsImprovement | CausalityIncidentRoot causeTimeline | LeanObservationProcessOperations | Root causeSafetyIncident |