Expert systems recently have become the object of much attention. Many IS researchers, practitioners, and corporate managers are actively involved in the study and application of these systems. This article places this development in perspective, recognizing that business expert systems have been in existence for more than two decades. It reviews the history of expert systems, discusses their current status, and makes predictions about their future. In addition, the article explores assimilation issues, considers hardware and software, reviews the nature of the applications, and highlights application developers.