A bottleneck determination method and system are disclosed. Sequential processes are defined and certain attributes for each process are quantified. These attributes may include a beginstock amount, a production amount, and a spoilage amount. Using the attributes, calculations are performed, and the results of these calculations are used to select processes that may be bottlenecks. Further calculations are performed with regard to this selected group, and the results of these further calculations are used to select a bottleneck process.