By business’s retailing is in a high speed development,in the business we immediately need a set of common business assistant decision support system beyond the old operation’s system.That use RS’s data analysis tool is better to discover the knowledge of a big size of business database .
This paper get across the application researching of the business assistant decision support system base on RSDA ,build the RSDA model,and improve on the some old arithmetic of RSDA to adapt the ch...