Ignoring resource constraints, this Master Schedule had a makespan of 264 days. Using Microsoft Project’s Resource Levelling function, a makespan of 506 days was achieved. This same Master Schedule optimized using ORITAMES produced a makespan of 396 days!
The main objective of Aslepiedra was to eliminate late deliveries, while reducing overall project cycle times. Elimination of idle times and unnecessary material transport was set as a nice-to-have side effect
The main objectives of Fabrica was to optimally load the batch furnaces, reduce the setups and eliminate late deliveries, while reducing overall project cycle times. Before using the APS, they needed a very high Work-In-Process (WIP) to keep the lines going, which meant a very high capital cost.