For the current manufacturing processes, there are many systems in which automatic and manual processes coexist. Compatibility of a model is a very important factor to perform correct analysis through simulation. In particular, unit utilization is also a very important factor. Analysis values vary according to how to examine and enter input data necessary for modeling. This study divides processes into automatic and manual ones to suggest how to perform different types of data collection. Automatic process implements data processing based on cycle time per unit while manual one measures cycle time per operator to process data in consideration of shifts per workplace. On completing input data, test for appropriateness is performed, followed by analysis of throughput and the operation rate per unit through a simulation model. Techniques in this study are applicable to general system simulations and will become inevitable for more thorough and accurate analysis.