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Design of a method for measuring the leanness level of production processes
Medonos, Michal ; Blecha, Petr (referee) ; Čambál, Miloš (referee) ; Lenort, Radim (referee) ; Jurová, Marie (advisor)
Focus of this dissertation thesis is to find suitable methodology for measuring the leanness of the production process. The history of approaches to the optimization of production systems is outlined in the literature search. Furthermore, the methodology of lean production is described, the concept of leanness of the production process is defined and also the current approaches and methods of measuring the leanness of the production process are summarized. The next section presents developed Lead Time Leanness Indicator as a proposal for a suitable way to measure the leanness of the production process. Within the primary research, the necessary data are obtained from production companies using a questionnaire survey to test the usability of this indicator in practice. Based on the evaluation of the results of this survey, all established hypotheses are confirmed, and it can be stated that the defined indicator and its methodology is a suitable tool for measuring the leanness of the production process. It is further confirmed that this indicator can be used to set goals for the implementation of the lean production methodology also for a mutual evaluation and comparison of the efficiency of production processes of different companies. Another benefit obtained from the questionnaire survey is the mapping of the current state of the level of leanness of production processes and the intensity of the use of lean production tools in production companies not only in the Czech Republic but also abroad. At the end of the work, a case study is presented, which demonstrates the use of the indicator to determine the current state of leanness of the production process and to define any potential for improvement in a particular manufacturing company.
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