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| Criterion |  Decision Making Constraint Analysis |  Decision Making Pre-Mortem |  Architecture Software Architecture Canvas |  Architecture Risk Storming |
|---|---|---|---|---|
Purposedifferent | When an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. | The Software Architecture Canvas reduces a system to the most important architecture decisions, constraints, and interfaces. It is useful when teams need a resilient overall picture quickly. | 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. |
Complexitysame | Low | Low | Low | Low |
Timedifferent | 30-90 min | 20–45 min | 1-2 h | 60-90 min |
Participantsdifferent | 2-8 | Small cross-functional group | 3-10 | 4-12 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Risk list, Mitigation plan, Assumption log | Architecture Canvas, Goals, Constraints, Quality Attributes | Annotated Diagram, Prioritized Risk List, Action Backlog |
Tagsno overlap | ConstraintsDecisionPlanningOptions | RiskDecisionFailurePlanning | CanvasArchitectureAlignmentWorkshop | RiskArchitectureWorkshopValidation |