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| Criterion |  Operations Time Blocking |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Architecture Risk Storming |  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. | 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. | Helps clarify architecture context, options, and consequences in concrete terms. It organizes technical context, alternatives, and consequences. The result is captured as an Annotated Diagram, a Prioritized Risk List, and an Action Backlog. | 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 | High | Low | Low |
Timedifferent | 15-30 min Planung, laufend | Several meetings plus preparation and analysis; total effort depends on scope | 60-90 min | 10-20 min daily |
Participantsdifferent | 1 | Evaluation team, architects, and relevant stakeholders | 4-12 | 1 |
Formatdifferent | Async | Workshop + async | Workshop | Async |
Outputdifferent | Blocked Calendar, Capacity View, Focus Plan | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Annotated Diagram, Prioritized Risk List, Action Backlog | Daily Plan, Time Estimates, Review Notes |
Tagsno overlap | PlanningTime managementFocus | ArchitectureQualityRiskTradeoffsStakeholders | RiskArchitectureWorkshopValidation | PlanningTime managementProductivityOperations |