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| Criterion |  Architecture Architecture Decision Record |  Operations A3 Problem Solving |  Operations Ivy Lee Method |  Operations ABC Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | With a restless workday full of too many open items, the method creates radical simplicity. It directs attention to a short sequence instead of a broad, still-open field. | With many similar objects of differing economic significance, the method prioritizes effort by effect. It separates what needs regular steering from what rarely needs attention. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 15-45 min | 45-90 min | 5-10 min daily | 30-60 min |
Participantsdifferent | 1-3 | 2-5 | 1 | 1-5 |
Formatdifferent | Async | Workshop + async | Async | Async |
Outputdifferent | ADR File, Decision Log, Rationale | A3 Report, Action Plan, Root Cause Analysis | Daily Priority List, Completion Notes | ABC Classification, Focus Rules, Control List |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | LeanProblem solvingCoachingOperations | PrioritizationProductivityExecution | PrioritizationOperationsPortfolio |