In compiling the final report of Wisconsin's ERIC on-line Information Retrieval Demonstration and Research Project, an extensive review of research on information science, user needs and perceptions, and information use and saturation was seen as a vital first step. Such knowledge might help explain the successes and failures of the Project, which placed display terminals linked to the ERIC data base in four districts and provided training in use of the systems for district personnel. Numerous successful searches were conducted for users, though breakdowns in the new computer program caused some dissatisfaction. Improved service could result from acceptance of the linker/gatekeeper model in information dissemination. Standard data such as costs, description of services, user documentation, forms, and reports have been collected in appendixes. (LS)