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| Criterion |  Agile Three Amigos |  DevOps ChatOps |  Agile Specification by Example |  Operations Root Cause Tree Analysis |
|---|---|---|---|---|
Purposedifferent | When story, test, and implementation could drift apart, it brings business perspective, engineering, and quality together early. It prevents a story from being read differently only late in the process. | 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. | When business rules need to become precise, it ties language, example, and test together. It sorts work by value, risk, and delivery ability. The result is captured as an Example Table and Acceptance Tests. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. |
Complexitydifferent | Low | Medium | Medium | Medium |
Timedifferent | 15-30 min | Ongoing | 60-90 min pro Feature | 1-3 h |
Participantsdifferent | 3 | 2-20 | 3-6 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Clarified Story, Test Examples, Open Questions | Chat Transcript, Action Log, Automations | Example Table, Acceptance Tests | Cause Tree, Evidence Notes, Countermeasures |
Tagsno overlap | CollaborationBehavior-Driven DevelopmentQualityRefinement | CollaborationEngineeringIncident | AgileRequirementsExamplesBehavior-Driven Development | Root causeTreeIncidentQuality |