Abstract
For the past several years, analytical chemists have been exploring the potential uses of expert systems in analytical chemistry. In some cases the results have been excellent but in others the results have been discouraging. Some of the discouragement may have come from an incomplete understanding of what expert systems are and why they cannot always be applied successfully. An expert system is a computer program that emulates the problem-solving process of human experts. Because there are many such computer programs, there are many types of expert systems. The differences among these systems are attributable to the different ways human knowledge is represented and manipulated in the programs. Along with natural language processing and robotics, the field of expert systems is generally considered to lie within the larger artificial intelligence (AI) domain. In this A/C INTERFACE, the authors will examine two different types of expert systems and consider how they could be used in the analytical laboratory. They will also discuss some of the realities of developing and using expert systems.
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