Bir Kamu Kurumunda Değer Akış Haritalama ve Simülasyon Yöntemiyle Hizmet Sürelerinin Değerlendirilmesi
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This study is about lean thinking and lean production tools derived from the Toyota Production System. The purpose of this study is to eliminate inefficiency, waste and unnecassary waiting specifically in the public sector by utilizing lean production techniques. In this context, the current status of the process of CITES and Conformity Certificate has been examined with the data obtained from the provincial organization of Ministry of Forestry and Water Affairs (MFWA) of the Republic of Turkey. The risks and problems that prevent the functioning of the system have been identified. To remove the root cause of each problem, 5 Why method has been utilized. In the light of Kaizen and risk assessment, suggestions for improvement have been presented. By monitoring the current process in detail, tact time and cycle time of the process have been determined and value stream map has been created. Avoiding operations contrary to the lean manufacturing, a value stream map has been developed for the future state. The reduction has been achieved in the supply time and waiting with the improvement studies in the future scenerio. Two simulation models have been developed to compare the current process and future case scenario. In this way, the yields of lean manufacturing and Value Stream Mapping methods have been confirmed by the simulation method. It has been seen that the software program developed by the Operation Department of MFWA in the direction of the suggestions provides a concrete improvement in the process. By comparing the performance values obtained from the present and future state maps, additional improvements have been suggested. This work is expected to present an example for other improvement studies that can be made in MFWA and in the other public organizations.