View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Operations Change Analysis |  Operations 8D Problem Solving |  Architecture Architecture Decision Record |  Architecture arc42 |
|---|---|---|---|---|
Purposedifferent | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | 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. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. |
Complexitydifferent | Medium | High | Low | Low |
Timedifferent | 45-120 min | 1-6 Wochen | 15-45 min | 1-2 Tage |
Participantsdifferent | 2-6 | 4-10 | 1-3 | 1-4 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Change Matrix, Cause Hypotheses, Validation Questions, Action List | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | ADR File, Decision Log, Rationale | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | ChangeRoot causeTroubleshootingComparison | QualityProblem solvingRoot cause | ArchitectureRationaleDocumentationGovernance | ArchitectureDocumentationCommunication |