Introduces and draws on other papers in this issue to discuss how task performance is achieved in workplace settings and the extent to which the knowledge needed for task performance is generic. Explores these questions from a variety of theoretical frameworks. (SLD)

A review and commentary on the previous article discusses the effects of stabilized retinal images on performance and the perceptual organization of a patterned skill. Future research on distribution-of-practice is considered. (JD)

Discusses three innovative Internet-based electronic document delivery systems: Ariel, developed by the Research Libraries Group; Digitized Document Transmission Project, developed by North Carolina State University; and Network Fax Project, developed by Ohio State University. System are compared in terms of equipment, operation, advantages and…