Explanation and Acquisition in Expert Systems Using Support Knowledge

There are many criteria that an expert system must meet in order to be considered successful in a domain. An important criterion is that it be able to solve problems in its domain with a satisfactory level of expertise. In addition to this an expert system should also be able to communicate well with its users. This means not only asking for relevant information when needed but also providing explanations of its reasoning process that are acceptable to a user. Furthermore, an expert system should be easily .expandable to incorporate new knowledge or correct outdated or erroneous knowledge