This report describes a mathematical model of the Division Tactical Operations System (DIV TOS) to develop information management concepts and procedures for automated battlefield command and control systems. The research effort evolved from previous work to develop a design/decision aid (DDA) for the evaluation of alternative information management policies. The original DDA model was concerned only with the Division Computing Center. The original effort was expanded to encompass both the distributed processors -- the Tactical Computer System and Tactical Computer Terminals--- and the supporting communications. The resulting model not only provides a tool for the analysis of TOS and its component parts, but also has the potential for application to other distributed command support systems with a central node and data base.
