In Phase I, we developed a prototype of Dynaman based on the Articulated Total Body (ATB) model. Dynaman can be based on Intel 80286 and 80386 based machines with appropriate math coprocessors. Based on our experience in Phase I, and our survey of ATB users in the government and the industry, we propose to continue work in Phase II in three stages. In stage 1, we will develop enhancements to the user interface, complete implementation of the full ATB model on microcomputers and test and validate Dynaman. In stage 2, we will develop several enhancements to Dynaman such as an increase in the number of segments that can be modelled, developing modules to model restraint system fittings such as retractors and d rings, integrating neuromusculature calculations and a finite element formulation of the seat. In stage 3, we will implement Dynaman in a multi-user, multi-tasking environment and develop a video interface to produce animation sequences of the motion of the occupant using a VCR.