Artificial Intelligence: "Anything that you hear about computers or AI should be ignored, because we're in the Dark Ages. We're in the thousand years between no technology and all technology. You can read what your contemporaries think, but you should remember they are ignorant savages." (Minsky in Brand, 1988) Expert systems are artificial intelligence systems that are intended to facilitate the assimilation of data and the resolution of management problems. They embody the tasks that the computer does best, the rapid and accurate retrieval of information from a massive memory. Expert systems that extract knowledge from a large information base can be developed to supplement human expertise and judgment in the decision processes. As decision tools, expert systems are designed to apply inference engines to a knowledge base in response to user specified criteria. By comparing these criteria with a set of predefined system rules, action alternatives sensitive to the context of the user's query are retrieved from the knowledge base. Some systems are self-informing, expanding with the information input of each use. Some can calculate the statistical probability of particular diagnostic processes. However, highly complex expert systems with an extensive rule base have proven to be costly and time consuming to assemble, and as yet, they have not matched the associative thought processes of the human mind. In view of the capabilities of current technologies, an appropriate objective of these systems is one of informing the decision process, not supplanting it. Cautions Parallel Processing