Demand forecasting method, demand forecasting device, and storage medium storing demand forecasting program

摘要

PROBLEM TO BE SOLVED: To generate various kinds of demand prediction information easy to be utilized. SOLUTION: This demand predicting method is provided with an order reception information input process for inputting definite order reception information, a predictive information reading process for reading out the predictive information of a demand inputted beforehand, an erasure rule file reading process for reading out plural erasure rule files for making respective data contained in the order reception information correspondent to respective data in the predictive information inputted beforehand, an article information reading process for reading out article information containing correspondent information making article data correspond to each of the erasure rule files and an updating process for updating the predictive information corresponding to the order reception information and this updating process has a rule specifying process for specifying the erasure rule file from the article information and the order reception information, an erasure data calculating process for preparing erasure data corresponding to the order reception information according to this erasure rule file and an erasing process for erasing the predictive information corresponding to these erasure data.