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Selected:Start Stop Continue Sailboat Retrospective ATAM (Architecture Tradeoff Analysis Method)4Ls Retrospective

Criterion	Agile Start Stop Continue	Agile Sailboat Retrospective	Architecture ATAM (Architecture Tradeoff Analysis Method)	Agile 4Ls Retrospective
Purposedifferent	When a team wants to deliberately adjust its working behavior, it makes habits visible and assessable. It focuses on concrete changes instead of diffuse mood.	When a team wants to read momentum, brakes, and risks together, it offers an easily understandable picture of the situation. It makes drive, obstacles, and headwind visible in the same picture.	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.	When a sprint should not only be assessed but also learned from, it captures experience in clear learning categories. It records what worked, what's missing, and what should run differently next time.
Complexitydifferent	Low	Low	High	Low
Timedifferent	30-60 min	45-90 min	Several meetings plus preparation and analysis; total effort depends on scope	45–75 min
Participantsdifferent	3-12	4-12	Evaluation team, architects, and relevant stakeholders	Team members involved
Formatdifferent	Workshop	Workshop	Workshop + async	Workshop
Outputdifferent	Start Stop Continue Board, Improvement Actions	Sailboat Board, Risks, Improvement Actions	Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations	4Ls Board, Learning Themes, Improvement Actions
Tagsno overlap	RetrospectiveImprovementTeamReflection	RetrospectiveTeamImprovement	ArchitectureQualityRiskTradeoffsStakeholders	RetrospectiveLearningReflectionTeam

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