Critical Ratio
Production Planning
Critical Ratio
Priority index equal to time remaining until due date divided by remaining work time; values below one indicate lateness risk.
Examples
- 01An order due in 4 days with 6 days of work left has a critical ratio of 0.67, so it is moved to the top of the list.
- 02The planner reviews all orders with a critical ratio below 1.0 every morning before releasing new work.
- 03Using the critical ratio, the daily meeting focuses on the five orders most at risk instead of discussing all 80.