Models in conventional decision support systems (DSSs) are best suited
for problem solutions in domains with well defined/structured (mathem
atical) or partially defined-semi-structured (heuristic) domain models
. Non-conservative/unstructured domains are those which either lack a
known model or have a poorly defined domain model. Neural networks (NN
s) represent an alternative modelling technique which can be useful in
such domains. NNs autonomously learn the underlying domain model from
examples and have the ability to generalize, i.e., use the learnt mod
el to respond correctly to previously unseen inputs. This paper descri
bes three different experiments to explore the use of NNs for providin
g decision support by generalization in non-conservative/unstructured
domains. Our results indicate that NNs have the potential to provide a
dequate decision support in non-conservative/unstructured domains.