A carpenter's factory produces windows and window frames according to customers' orders. The production process is composed of 10 steps: sawing, milling, hinge fixing, spraying, etc. A customer order consists of a quantity of windows or window frames and of an agreed delivery week. The order portfolio of for a given year is made up of 100 customer orders.

The first objective of the case study is to model the process and the fulfillmentfulfilment of this portfolio through the time. To this end, actual delivery dates and planning can be compared to each other. The second objective is development of this model towards a measurement tool. This is made possible by the production of GanntGantt charts for the production planning, the testing of priority rules with consideration of the delivery date, or the effect of the intermediate planning of an urgent order.

This case study illustrates the advanced possibilities of simulation as an operational planning tool.