The command language features of 11 on-line information retrieval systems are presented in terms of the functional needs of a searcher sitting at a terminal. Functional areas considered are: becoming familiar with the system, receiving help when in trouble, regulating usage, selecting a data base, formulating simple queries, expressing single…

Southwest Regional Laboratory IDCMS (Instructional Development Control and Monitoring System) will be a flexible hardware system for controlling and monitoring instruction and research in the laboratory setting. This paper seeks to introduce potential users to the system and software designers to representative challenges that system exploitation…

An illustration of modestly-interactive instruction of moderate length--to be administered to six students who start off together--is presented. Implications for IDCMS regarding number of audio programs and video files and extent of looping are preliminarily deduced on the basis of characteristics of the illustrative instructional program.…