View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Architecture Architecture Decision Record |  Operations ALPEN Method |  Operations Kepner-Tregoe |  Operations A3 Problem Solving |
|---|---|---|---|---|
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. | With an overloaded day full of too many tasks, a realistic picture of the day emerges. The method connects estimating, deciding, and buffer thinking so planning fits available energy and time. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. | 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. |
Complexitydifferent | Low | Low | High | Medium |
Timedifferent | 15-45 min | 10-20 min daily | 2-8 h | 45-90 min |
Participantsdifferent | 1-3 | 1 | 2-8 | 2-5 |
Formatdifferent | Async | Async | Workshop + async | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | Daily Plan, Time Estimates, Review Notes | Problem Analysis, Decision Analysis, Risk Plan | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | PlanningTime managementProductivityOperations | Problem solvingRoot causeDecisionOperations | LeanProblem solvingCoachingOperations |