Predicting the leanness of a manufacturing system by considering simultaneous partial utility functions of indices (Case Study: Textile Company )

Investigating the leanness of manufacturing systems, like other projects, is subject to some quantifiable and measurable components such as zero defect, zero transit time and so on, these coefficients and ratios can be extracted and calculated. In the present study, the operation of the concept of lean production and predicting the leanness of a production system is followed. With the help of this model, the degree of leanness of manufacturing companies can be assessed by focusing on management commitments and the level of leanness in the future can be predicted according to changes in effective indicators. The utility of the decision is calculated using the multiple linear combination form after examining the independence conditions of the indicators. Thus, the partial utility functions of all indices are considered simultaneously and assumed to be linear. In order to calculate the partial functions of experts in a textile company, help has been obtained. Finally, using the obtained model, the degree of leanness of the production system is presented in the form of a nonlinear mathematical function, thus providing a tool for better decision making in complex environmental conditions.