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| Criterion |  Architecture Architecture Decision Record |  Operations Gemba Walk |  Operations ALPEN Method |
|---|---|---|---|
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. | When there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. | 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. |
Complexitysame | Low | Low | Low |
Timedifferent | 15-45 min | 30-120 min | 10-20 min daily |
Participantsdifferent | 1-3 | 2-6 | 1 |
Formatdifferent | Async | Workshop | Async |
Outputdifferent | ADR File, Decision Log, Rationale | Observation Notes, Improvement Ideas | Daily Plan, Time Estimates, Review Notes |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | LeanObservationProcessOperations | PlanningTime managementProductivityOperations |
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