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 Causal Factor Analysis |  Operations Barrier Analysis |  Agile Bucket System |  Systems Thinking Current Reality Tree |
|---|---|---|---|---|
Purposedifferent | 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 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. | When a large batch of work needs a fast, rough estimate, it sorts items into predefined size buckets. It sorts work by value, risk, and delivery ability. The result is captured as a Bucketed Backlog, Relative Estimates, and Split Candidates. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. |
Complexitydifferent | High | Medium | Medium | High |
Timedifferent | 2-6 h | 2-4 h | 30-90 min | 2-6 h |
Participantsdifferent | 3-10 | 2-6 | 3-12 | 3-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Bucketed Backlog, Relative Estimates, Split Candidates | Current Reality Tree, Core Problems, Intervention Ideas |
Tagsno overlap | CausalityIncidentRoot causeTimeline | Root causeSafetyIncident | EstimationBacklogRelative sizing | Systems thinkingRoot causeConstraintsCausality |