This paper presents a production planning system with a hierarchical framework, which includes feedback based on human judgement between any two production planning levels. This system was applied to a motor industry with some favorable results, compared with the traditional system. © 1987.
Tsubone, H., & Sugawara, M. (1987). A hierarchical production planning system in the motor industry. Omega, 15(2), 113–120. https://doi.org/10.1016/0305-0483(87)90025-9