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| Criterion |  Operations Time Blocking |  Decision Making Assumption Surfacing |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations ALPEN Method |
|---|---|---|---|---|
Purposedifferent | With a calendar that grows on request, the method makes available time explicit again. It combines appointments, focus work, and buffer into a more realistic day structure. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | ATAM helps teams weigh architecture decisions when quality goals compete. The team considers business goals, stakeholder expectations, and technical decisions together. The evaluation shows which risks need further investigation. | 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. |
Complexitydifferent | Low | Low | High | Low |
Timedifferent | 15-30 min Planung, laufend | 45-90 min | Several meetings plus preparation and analysis; total effort depends on scope | 10-20 min daily |
Participantsdifferent | 1 | 2-8 | Evaluation team, architects, and relevant stakeholders | 1 |
Formatdifferent | Async | Workshop + async | Workshop + async | Async |
Outputdifferent | Blocked Calendar, Capacity View, Focus Plan | Assumption List, Critical Assumptions, Learning Plan | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Daily Plan, Time Estimates, Review Notes |
Tagsno overlap | PlanningTime managementFocus | AssumptionsRiskDecisionDiscovery | ArchitectureQualityRiskTradeoffsStakeholders | PlanningTime managementProductivityOperations |