Prepared as part of a program to develop both a system to assess information needs of teacher education decision makers and impact strategies to increase the probability that teacher educators will make appropriate use of research and development findings and products, this document reports on the literature review that led to the initial construction and subsequent modification of the Florida Assessment/Diffusion System (FADS) model. Following an introduction that reviews the entire program and the development of the FADS model, the report provides the following: (1) a rationale for a review of literature relevant to the FADS model; (2) a description of the procedures used in the review; (3) a glossary of technical terms relevant to the FADS model; (4) a schematic of the model; (5) a detailed description of the five components of the model--initiation, verification, problem solving, diffusion, and evaluation; and (6) a discussion of the form and substance of the type of diffusion theory most effective in the diffusion of educational innovations. (FL)