A computer-based expert system for the evaluation of research and deve
lopment projects is presented. The system was developed for The Minist
ry of Science and Technology of the Republic of Slovenia and in the pr
ocess of evaluation and selection of projects submitted to the annual
competition for funds. The system is based on an adapted portfolio mat
rix that determines the position of each project with respect to its c
ontents and feasibility. The aggregation of these criteria is carried
out by a qualitative multi-attribute decision model that was developed
using an expert system shell: DEX. The model consists of a tree of cr
iteria, supplemented by if-then rules. In addition to describing these
components, the paper presents and discusses a practical application
of the system.