The Productivity Theoretical Evaluation has the significant role for the shortening of Mass Production Preparation Period at the new model introduction. We have to eliminate the unnecessary Evaluation and Confirmation at Prototype Evaluation Stage. We have been working on to develop the theoretical evaluation system by the utilization of 3D graphics and established a process to incorporate the evaluation result into Mechanical Prototype Drawings and Final Drawings. Our Productivity Evaluation consists of 4 steps, where the evaluation items are added as step levels up, or as the vehicle structure design becomes more detailed. This method, implementing DPA (Digital Pre-Assembly) verification 4 times before the final drawing release and incorporate the evaluation result into next release drawings, requires the efficient evaluation process. Therefore we have developed the software which has self-collecting function of necessary data to verify an operation process, or the interface where converts 3D-CAD data directly. To acquire more reliable verification result in the man work simulation, we also have studied the body build of operators and the movement of joints to develop Mazda original and more realistic man model. We would like to explain our activity and the status on the evaluation system in Trim & Final Assembly Area.
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