Part I established why market research and market feasibility are distinct questions. Part II addresses implementation: how do you structure validation to produce decisions rather than reports? The answer lies in four feasibility domains. Technical viability validates whether your product functions in the target environment. Financial sustainability confirms whether unit economics support profitable operations. Operational capacity proves whether your organisation can execute at required scale. Competitive positioning tests whether you can credibly win share against incumbents. Each domain requires different validation methodologies that leadership synthesises into go/no-go recommendations before committing expansion capital.