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| Criterion |  Operations Process Mapping |  Operations Causal Factor Analysis |  DevOps Incident Timeline Analysis |  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. | For an incident with an unclear sequence, the method makes the timeline precisely visible. It separates perception, reaction, and delay so cause and effect become more clearly readable. | 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 | Medium | Medium |
Timedifferent | 1-3 h | 2-6 h | 60-180 min | 2-4 h |
Participantsdifferent | 3-10 | 3-10 | 3-10 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Process Map, Handoff List, Improvement Backlog | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Incident Timeline, Evidence Log, Delay Analysis, Improvement Actions | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | ProcessOperationsImprovement | CausalityIncidentRoot causeTimeline | IncidentTimelineSite Reliability Engineering | Root causeSafetyIncident |