The Rule-Based (RB) and the Artificial Neural Network (ANN) approaches
to expert systems development have each demonstrated some specific ad
vantages and disadvantages. These two approaches can be integrated to
exploit the advantages and minimize the disadvantages of each method u
sed alone. An RB/ANN integrated approach is proposed to facilitate the
development of an expert system which provides a ''high-performance''
knowledge-based network, an explanation facility, and an input/output
facility. In this case study an expert system designed to assist mana
gers in forecasting the performance of stock prices is developed to de
monstrate the advantages of this integrated approach and how it can en
hance support for managerial decision making.