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| Criterion |  Knowledge Modeling IBIS |  UX Design Service Blueprinting |  Operations Root Cause Analysis |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
Purposedifferent | IBIS structures thinking about complex questions as a sequence of issues, ideas, and arguments. The method keeps discussions open without forcing them into premature consensus. | When a service experience is spread across several touchpoints, it brings frontstage and backstage together. It shows where user contact and internal responsibility must fit. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. |
Complexitydifferent | Medium | High | Medium | High |
Timedifferent | 1-3 h | 0.5-2 Tage | 1-4 h | 2-6 h |
Participantsdifferent | 2-8 | 6-12 | 3-8 | 3-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Issue Map, Positions, Argument Notes | Service Blueprint, Fail Points, Ownership Map | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | RationaleKnowledgeDecision | Service designOperationsJourneyBlueprint | Root causeProblem solvingQualityIncident | RiskQualityOperationsRoot cause |