Pro/3 is an expert system shell - a system for building expert systems which can perform expert-like reasoning in a problem domain. The model on which the reasoning is based on can include high volumes of facts (100,000+), crisp logic rules (PROLOG-type inference) with substantial add-on’s for handling statistical  and other operations on sets of facts, as well as inexact reasoning rules with certainties, probabilities and fuzzy sets. Possible applications include problem domains involving inexact classifications (stock selection, market state assessment, medical diagnostics, network diagnostics), event forecasting with certainty rules and rule-intensive applications in general. Learn more about Pro/3.