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Criterion
Incident Command workspace showing the question, observations, and next decision.
DevOps
Incident Command
Paper illustration of an assumption matrix with prioritized test cards
Decision Making
Assumption Surfacing
Paper illustration: scenarios and architectural decisions are connected to identified risks.
Architecture
ATAM (Architecture Tradeoff Analysis Method)
Four paper stations connect system purpose, quality goals, risk cards and focused investigation with a target and gap profile.
Architecture
LASR (Lightweight Approach for Software Reviews)
Purposedifferent
During an acute incident with several people involved, the method creates a clear leadership and communication structure. It reduces chaos when fast coordination and clean situational awareness are both needed at once.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.LASR helps development teams identify where their software falls short of important quality goals and which improvements to consider. A small group with existing system knowledge can make an initial assessment and investigate open questions in more detail.
Complexitydifferent
MediumLowHighMedium
Timedifferent
As needed45-90 minSeveral meetings plus preparation and analysis; total effort depends on scope3–4 h for initial assessment; preparation and deeper analysis additional
Participantsdifferent
4-152-8Evaluation team, architects, and relevant stakeholders1 or a small team; particularly suitable for 3–4 people
Formatsame
Workshop + asyncWorkshop + asyncWorkshop + asyncWorkshop + async
Outputdifferent
Incident Log, Action Tracker, Stakeholder UpdatesAssumption List, Critical Assumptions, Learning PlanPrioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigationsLean Mission Statement describing the software’s purpose, Prioritized quality goals and evaluation criteria, Risks and estimated gaps against quality goals, More closely examined findings and open checks
Tagsno overlap
IncidentOperationsReliability
AssumptionsRiskDecisionDiscovery
ArchitectureQualityRiskTradeoffsStakeholders
ArchitectureQualityRiskAssessmentLean
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