Based on the business process the production process of the structure of the built-in System Model. First collect the relevant data to build the model, collect a variety of production object-related number, the analysis of the collected data, analyze the data, select the best function, the mean, the probability distribution function, and to determine the distribution function of specific parameters. Dating business model for packaging at the end of the storage system simulation model, Flexsim simulation of the production process functions used to implement each sector's production efficiency.