Not a score or a maturity rating. The actual behaviour of the process, in units your plant managers and finance team already argue about.
Site variationThe same order type, plant by plant, so improvement effort goes where the spread actually is rather than to the average.
Rework and repeat handlingOrders that went round twice — re-scheduled, re-inspected, corrected or credited — separated from orders that went round once.
Waiting versus workingHow much of the cycle was someone doing something, and how much was the order sitting in a queue between two systems.
Handoff frictionWhere the order crossed a boundary — planning to production, production to warehouse, warehouse to billing — and lost time doing it.
Variant sprawlHow many distinct paths one designed process actually runs, and which of them carry the delay and the cost.
Commitment riskWhich orders are drifting towards an SLA or delivery breach while there is still time to intervene.