This **comparison matrix** presents decision axes, trade-offs, and constraints exclusively for evaluation purposes. It does not constitute a recommendation, an endorsement, or a ranking of deployment models. Final decisions must be guided by your organization's specific requirements, regulatory context, and risk tolerance. What does this matrix do?: helps to reason about deployment options. What does this matrix not do?: tell you which option to choose. The register remains deliberately sober: it accompanies the reasoning without ever replacing the decision-making responsibility. It is the type of text that clarifies the perimeter even before the content — always a good idea when talking about architectures and strategic choices. The sections are multiple. Among them we include: - DATA LOCALITY / PRIVACY - COST PREDICTABILITY - LATENCY CONTROL and many others. Visit it!