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| Criterion |  DevOps ChatOps |  Product Discovery Test Card |  Operations Root Cause Analysis |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | For operational work in a distributed team, the method links communication with direct system control. It records decisions right where the signal, the context, and the execution come together. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | 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 an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | Medium | Low | Medium | High |
Timedifferent | Ongoing | 20-35 min | 1-4 h | 1-6 Wochen |
Participantsdifferent | 2-20 | 1-5 | 3-8 | 4-10 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Chat Transcript, Action Log, Automations | Test Card with a pre-set threshold | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | CollaborationEngineeringIncident | ExperimentsValidationDiscoveryHypothesis | Root causeProblem solvingQualityIncident | QualityProblem solvingRoot cause |