At present there is no comprehensive source of data regarding educational technology. Base-line statistical information on collections and equipment, as well as their unique impact on other institutional cost factors, must be established if there is to be adequate evaluation of their impact on instructional practices. This report defines the field of educational technology, outlines requirements for a relevant general information system--specifying goals, users, linkages, sources of data, and data collection procedures--and recommends procedures for development of such an information system. This publication also incorporates critiques of the conceptual scheme by 11 reviewers representing a range of educational and technology interest. (Author)