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| Criterion |  Engineering Fault Isolation |  Team Design Spotify Model Mapping |  Engineering Hypothesis-Driven Troubleshooting |  Facilitation Expectation Mapping |
|---|---|---|---|---|
Purposedifferent | In technical failures, the visible symptom often gets mixed up with the actual cause. Fault Isolation narrows the fault space and progressively reduces which part of the system is truly affected. | When a team landscape has grown without clear grouping, it maps roles and relationships onto the Spotify model. It clarifies responsibility, interaction, and load between teams. The result is captured as a Spotify model map and action list. | When systems fail unexpectedly, spontaneous attempts often produce more noise than insight. Hypothesis-driven Troubleshooting translates symptoms into testable assumptions and makes troubleshooting learnable. | When roles, interfaces, or projects fail because of differing expectations, Expectation Mapping surfaces these differences. It shows what each side takes for granted and where the pictures diverge. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 30-180 min | 90-180 min | 30-240 min | 45-90 min |
Participantsdifferent | 1-6 | 5-15 | 1-6 | 3-12 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Spotify Model Map, Action List | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary | Expectation Map, Alignment Notes, Agreements |
Tagsno overlap | TroubleshootingDiagnosisEngineering | TeamOrganizationAlignmentDiagnosis | TroubleshootingProblem solvingDiagnosis | AlignmentStakeholdersTeam |