This document contains a number of models that describes how a museum can act as a communications device to the public. The argument is made that a one-dimensional model is no longer sufficient to explain the communication between museum and visitor. The focus is on a model that provides what the visitor desires and needs in exhibits, tours, movies, and multi-media programming; allows visitor response to guide exhibit and program development; and assumes that a comprehensive view of exhibit communication is required to send messages effectively. Factors to be considered in creating effective communication include the visitor's ability to understand the exhibit, the ability of the media to accurately portray the message, and the appropriateness of the exhibition media. The conclusion is that without a positive response from the visitor and thoughtful application of evaluation feedback, museums will wither and die from lack of use. (Contains 12 references.) (DDR)