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| Criterion |  Operations Barrier Analysis |  Innovation Design Thinking |  Operations Causal Factor Analysis |  Innovation Design Sprint |
|---|---|---|---|---|
Purposedifferent | 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. | For complex user problems with an uncertain cause, the method connects observation, interpretation, and experiment into a learning cycle. It keeps the focus on real needs and avoids premature solution language. This produces robust decisions for product and service. | 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 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. |
Complexitydifferent | Medium | High | High | High |
Timedifferent | 2-4 h | 1 Tag bis mehrere Wochen | 2-6 h | 4-5 Tage |
Participantsdifferent | 2-6 | 4-10 | 3-10 | 5-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Problem Statement, Prototype, Test Learnings | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Prototype, Test Findings, Decision Rationale |
Tagsno overlap | Root causeSafetyIncident | InnovationPrototypeResearch | CausalityIncidentRoot causeTimeline | Design sprintPrototypeValidationInnovation |