Abstract
We have developed a multiple regression analysis supporting system named RASS2. The aim of the system is to provide consulting mechanisms with high flexibility and extendibility to users. RASS2 is constructed with original objects as its basic components. Objects in RASS2 are extended objects, which include rules for representing knowledge of regression analysis techniques. Rules are described within the class definition. Each object suggests the best procedure according to the state of the analysis and negotiates with other object to resolve conflicts among their suggestions. Users can follow the suggestion or can execute other procedures. Compared with the earlier version of RASS, the objects make the system structure simple and modifications of statistical knowledge embedded in the system easy.