Six dimensions. Measured at the boundary.

A healthy infrastructure behaves more like a living system than a static machine. That is not a metaphor for its own sake — each dimension resolves to something an engineer can specify and measure, at the interface between the facility and its hosts.

The six are reported side by side as a profile — never averaged into a single score. No physician averages hemoglobin with cholesterol, because the average would conceal exactly what matters. Every indicator additionally carries an evidence grade, from measured operational data down to unverified assertion, so that a promise and a meter reading can never wear the same clothes.