Inventory creep phenomenon in process scheduling

This work discuss the inventory creep phenomenon that occurs in production processes. Most production process use inventory to store their products for maximizing profit. When planning and scheduling control methods were applied, these processes encountered this phenomenon at the end of the controlled horizon. We applied the economic model protective control on a production process example and demonstrate the effect the inventory creep in open-loop and closed-loop solutions. An approach is developed to negate this problem by implementing a novel terminal constraints that showed a promising results in the overall performance of the process.