The ES could probably know more: But man would not make better business decisions

We know for a long time that expert system (ES) must not know in a different way than how man knows. We would not expect men to adapt their thinking processes to the machine, would we? Evolution would not let peoples' minds adopt criteria weighting or fuzzy logic. This is why we developed our Doctus1 knowledge-based expert system based on symbolic logic ? that is the easiest to understand artificial knowledge representation to the decision taker. However, this is all history now... Now we perhaps understand decision takers better ? maybe it was worth observing them for nearly two decades. Decision takers, and we mean only the most experienced ones, want to be able to play around a bit with a particular decision and, eventually, they want some help in delegating the decisions they are bored with.