A study on modeling systems was conducted to examine the extent of model use and the usefulness of the analytical models currently available. Specific study objectives were to identify: the users of some of the most frequently used modeling systems, the reasons for the selection of particular models, the problems and successes of implementation, user perceptions of the usefulness of models in decisionmaking and planning, and user perceptions of the likelihood of future use of models in institutions of higher education. A questionnaire was sent to project leaders to determine the selection process, objectives, implementation problems, and current and future use. A second questionnaire was directed to academic and financial administrators and focused on model-selection, objectives, and future use. A total of 394 institutions were identified as having access to one of the four modeling systems (CAMPUS, HELP/PLANTRAN, RRPM, and SEARCH). Representatives of 199 of the 394 institutions responded to the first questionnaire, and 132 representatives responded to the second questionnaire. It was found that there is considerably more willingness to rely on models for long-range planning than for day-to-day decisionmaking. A comparison of the responses of the two groups is made, findings are analyzed by institutional classification, and successes and problems are discussed. Sample questionnaires and a bibliography are included. (SW)