Electronic performance support systems (EPSS) are fast becoming an integral part of our workplaces. Most often EPSS's serve as procedural and informational job aids. Whether they be built into the software you purchase or into the components of the computer, EPSS's provide documentation, tutoring, and error detection at a moments notice.

Expert systems serve as an intellectual advisor or coach. These systems are useful for providing the insight of experts, coaching on ambiguous situations, explanations of recommendations, and patience.