Mobilization planning for the Total Force involves making the most effective use of the active and reserve component assets: Active units and commands; Units and individuals in the Ready Reserve; Individuals in the Standby Reserve; and Retired personnel. Preparation for mobilization must begin long before an actual mobilization can occur. This preparation should include: Assignment of personnel to selected reserve units; Preassignment of Individual Mobilization Augmentees, Individual Ready Reserve, Standby Reserve, and retired personnel to mobilization billets; Training of all Selected Reserve personnel (including recording of qualifications); Estimating the yield to be obtained in an actual mobilization; Planning for administration and management during mobilization execution. Computers can provide valuable assistance to mobilization planners in all phases. Mobilization planing; Training; Mobilization execution; and Mobilization assessment; The study proposed that a computer model be developed to assist manpower planners; the model is now used for predicting mobilization yield under various sets of assumptions. In fact, the use of a unified approach to mobilization planning and system development might improve the mobilization potential of all the reserve components.