STR.6:5.2 - Retaining the device fallback has an opportunity cost

In SensorCo’s proposed first-month configuration, six platform-preparation person-days include two days for device-compatible interfaces and maintenance instructions. That leaves four for the service-specific platform subset and postpones a two-day service-diagnostic enhancement.

Those two days carry a real future choice: returning to device-only provision through the first staged decision. They are included in the configuration’s work demand, not taken again from unallocated capacity. Retention beyond that point needs its own support and cost answer.

This is different from preserving the old device proposal in meeting notes. The former keeps action possible at a sacrifice; the latter preserves reasoning. STR.9 compares whether the flexibility is worthwhile, and STR.14 checks whether the whole proposed configuration fits with current service and reserve.