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| Criterion |  Innovation Design Sprint |  Operations Causal Factor Analysis |  Systems Thinking Current Reality Tree |  Operations Barrier Analysis |
|---|---|---|---|---|
Purposedifferent | When the product question is unclear and time pressure is high, the method takes a team from an open idea to a testable solution. It connects problem understanding, decision, and learning in one compact format, lowering the risk of spending a lot of energy on a mere guess. | 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. | 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. | 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 | High | High | High | Medium |
Timedifferent | 4-5 Tage | 2-6 h | 2-6 h | 2-4 h |
Participantsdifferent | 5-8 | 3-10 | 3-8 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Prototype, Test Findings, Decision Rationale | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Current Reality Tree, Core Problems, Intervention Ideas | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | Design sprintPrototypeValidationInnovation | CausalityIncidentRoot causeTimeline | Systems thinkingRoot causeConstraintsCausality | Root causeSafetyIncident |