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Selected:Shape-First ModelingFake Door TestATAM (Architecture Tradeoff Analysis Method)Assumption Mapping
| Criterion |  Knowledge Modeling Shape-First Modeling |  Product Discovery Fake Door Test |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | Shape-First Modeling defines data quality through shapes before implementation or integration frays at the edges. The approach fits when validation and data contracts should be part of the design from the start. | When demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. | 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Medium | Medium | High | Medium |
Timedifferent | Halber Tag pro Domain Slice | 1-5 Tage | Several meetings plus preparation and analysis; total effort depends on scope | 45-60 min |
Participantsdifferent | 1-4 | Nutzertraffic | Evaluation team, architects, and relevant stakeholders | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | SHACL or ShEx Shapes, Validation Reports, Data Contracts, Shape Documentation | Click Data, Interest Signal, Learning Decision | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | Knowledge graphValidationSemantic | ValidationExperimentsDemandDiscovery | ArchitectureQualityRiskTradeoffsStakeholders | AssumptionsRiskExperimentsValidation |