View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Architecture arc42 |  Decision Making Delphi Method |  Decision Making OODA Loop |  Architecture Architecture Decision Record |
|---|---|---|---|---|
Purposedifferent | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. | When knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | In dynamic situations, decisions become outdated faster than they can be prepared. The OODA Loop holds observing, orienting, deciding, and acting together as a recurring rhythm so reaction does not slide into inertia. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. |
Complexitydifferent | Low | High | Medium | Low |
Timedifferent | 1-2 Tage | 1-4 Wochen | 15-60 min je Zyklus | 15-45 min |
Participantsdifferent | 1-4 | 6-30 Experten | 1-8 | 1-3 |
Formatdifferent | Workshop + async | Async | Workshop + async | Async |
Outputdifferent | Architecture Document, Context View, Runtime View, Deployment View | Expert Forecast, Consensus Range, Assumption Notes | Situation Assessment, Decision Loop, Action Updates | ADR File, Decision Log, Rationale |
Tagsno overlap | ArchitectureDocumentationCommunication | ForecastingExpertsDecisionStrategy | DecisionChangeLearningStrategy | ArchitectureRationaleDocumentationGovernance |