Revisiting the mixed-model multi-level just-in-time scheduling problem

Morabito and Kraus (1994) propose a modification to the mathematical model of the mixed-model, multi-level just-in-time (JIT) scheduling problem introduced in Miltenburg and Sinnamon (1989). In this note we relate their proposal to the goals of JIT production and emphasize the importance of using the weights in the original formulation to express management priorities.