Formation of expert system decision explanation in the object classification process

We consider the way of the fuzzy rules formation to explain the expert system (ES) decisions to classify the objects. Also we consider the problem of interpreting and presenting explanations of the ES classification, which is solved using the fuzzy rules in the users' vernacular. We propose the technique, which allows to convert the initial classification fuzzy model into explanation fuzzy model. Validity of considered approach to obtaining the decision explanation is confirmed by practical experience in the construction and operation of the expert system for pregnancy pathologies prediction.