Abstract
Inventory functions as an adjusting valve to absorb many problems for manufacturers, and it contributes to the activities that maintain daily production. However, it is difficult to accurately grasp the ways in which production acts. In the present study, the problems which arose in inventory at a company were classified as either "phenomenon appearance type problems" or "purpose-setting type problems". Three types of corporate behavior to deal with these two problems were proposed : "holding action", "prior correspondence", and "purpose-setting action". A degree-of-prediction scale was then introduced on the basis of the demonstrative data of the enterprise, and quantification theory was used with the three proposed corporate behaviors to deduce the basic axis of the characteristics that affected inventory.
