ACCESSORY PRODUCT DEMAND PREDICTION SYSTEM

PROBLEM TO BE SOLVED: To set the demand prediction of an accessory product in real time with the latest demand data by calculating an order reception result which is generated in real time and the rate of connection between a main product and an accessory product, and calculating the demand predicted value of the accessory product from the demand predicted value of the main product. SOLUTION: For order reception information 108, product information, an ordered quantity, etc., are inputted through a terminal. An accessory product connection rate calculating function 113 calculates the ordered quantity of accessory products connected to one main product from design information 109, a connection logarithm table 124, etc. On the basis of a main product total quantity table 115 and a connected accessory product total table 114, the number of accessory products connected to one main product is calculated and added to an accessory product connection rate table 112. A skilled operator inputs the demand prediction 105 of the main product in product information units through a terminal and it is added to a main product demand prediction table 111. Then the demand prediction of the main product demand prediction table 111 and the connection rate of the accessory product connection rate table 112 are multiplied by each other to predict the demand quantity of accessory products.