What-If and Scope

Honest Rough-Cut Scope

Rough-cut capacity planning here is deterministic load arithmetic, not a detailed schedule.

highlighted = computed this step

Deterministic Snapshot

This snapshot uses fixed schedule, fixed standard hours, and fixed available hours.

base utilization=4/5what-if utilization=1\text{base utilization} = 4/5\quad\text{what-if utilization} = 1
Rough-cut capacityThe chart compares the base plan with the schedule what-if.rough-cut capacity planningschedule 40; std hours/unit 2; available 100casescheduleloadavailableslackutilizationbase4080100204/5what-if5010010001baseload 80slack 20available 100what-ifload 100slack 0available 100what-if load 100; utilization 1deterministic rough-cut capacity arithmetic only

Honesty Note

This is deterministic rough-cut capacity arithmetic only. It does not model detailed scheduling, overtime, labor mix, setup time, product routing, learning, or uncertainty.

rough-cut capacity is not detailed scheduling\text{rough-cut capacity is not detailed scheduling}
Rough-cut capacityThe chart compares the base plan with the schedule what-if.rough-cut capacity planningschedule 40; std hours/unit 2; available 100casescheduleloadavailableslackutilizationbase4080100204/5what-if5010010001baseload 80slack 20available 100what-ifload 100slack 0available 100what-if load 100; utilization 1deterministic rough-cut capacity arithmetic only