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Selected:Lean StartupRAID LogARID (Active Reviews for Intermediate Designs)ATAM (Architecture Tradeoff Analysis Method)
| Criterion |  Innovation Lean Startup |  Delivery RAID Log |  Architecture ARID (Active Reviews for Intermediate Designs) |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|---|
Purposedifferent | For uncertain business assumptions, the method forces the idea into contact with real market reactions early. It separates wishful picture, assumption, and observable behavior, so that learning becomes faster than planning. This translates uncertainty into measurable insight. | Helps clarify scope, sequence, and delivery flow in concrete terms. It makes work, boundaries, and order steerable. The result is captured as a RAID Log and a source for status reporting. | ARID examines how well developers can work with a technical design. It focuses on a part of the system that can still be revised, between the architecture overview and the detailed specification. | 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. |
Complexitydifferent | Medium | Low | Medium | High |
Timedifferent | Wochen bis Monate je Lernzyklus | 30 min Setup, dann laufend | 2–4 h review as a planning range; preparation and evaluation additional | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 2-8 | 1-3 maintaining, briefing for everyone | Designers, developers as users, and facilitation | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | RAID Log, Status Report Source | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations |
Tagsno overlap | LeanStartupValidationMVP | RiskTrackingStakeholdersGovernance | ArchitectureEngineeringFeedbackValidationTasks | ArchitectureQualityRiskTradeoffsStakeholders |