A Combined Fuzzy-QFD-BDANP Approach for Identifying Lean Wastes and Lean Practices

Abstract

Lean manufacturing is a management philosophy that aims to improve the performance of a business or production process by eliminating waste through globally recognized practices. This study aims to determine the priority types of waste encountered in the production process and the appropriate lean practices for eliminating these wastes. The study, which presents a hybrid model that takes into account the relationships between waste types and lean applications both among themselves and with each other, has integrated Quality Function Deployment (QFD), fuzzy numbers, DEMATEL, and Analytical Network Process (ANP) methods. According to the analysis results, which used the opinions of experts providing consultancy services on lean production as data, overstock is the most important type of waste; employee participation, kanban, and cellular manufacturing are critical lean practices in eliminating waste. While the study contributes to the literature by considering the type of waste of unused talent that has recently been identified, the hybrid approach that considers uncertainty and dependencies increases the study's importance in the relevant field.

Keywords

• Lean waste
• Lean practices
• QFD
• Fuzzy numbers
• DEMATEL
• ANP

Yalın İsraflar ve Yalın Uygulamaların Belirlenmesi İçin Birleştirilmiş Bir Bulanık-QFD-BDANP Yaklaşımı

Abstract

Yalın üretim, tüm dünyada tanınan uygulamalar aracılığıyla israfları ortadan kaldırarak işletmenin veya üretim sürecinin performansını iyileştirmeyi hedefleyen bir yönetim felsefesidir. Bu çalışma, üretim sürecinde karşılaşılan öncelikli israf türlerinin ve bu israfların ortadan kaldırılması için uygun yalın uygulamaların belirlenmesini amaçlamaktadır. İsraf türlerinin ve yalın uygulamaların gerek kendi aralarında gerek birbirleriyle olan ilişkilerini dikkate alan bir hibrit modelin sunulduğu çalışmada; Kalite Fonksiyon Göçerimi (QFD), bulanık sayılar, DEMATEL ve Analitik Ağ Süreci (ANP) yöntemleri entegre edilmiştir. Yalın üretim konusunda danışmanlık hizmeti veren uzmanların görüşlerinin veri olarak kullanıldığı analiz sonuçlarına göre fazla stok bulundurmak en öncelikli israf türüyken; israfların ortadan kaldırılmasında; çalışan katılımı, kanban ve hücresel imalat önemli yalın uygulamalardır arasında yer almaktadır. Literatürde yenice yer bulan kullanılmayan yetenek israf türünün de dikkate alınmasıyla literatüre katkı sağlanırken; belirsizliğin ve bağımlılıkların hesaba katılması açısından sunulan hibrit yaklaşım; çalışmanın ilgili alandaki önemini artırmaktadır.

Keywords

• Yalın israf
• Yalın uygulamalar
• QFD
• Bulanık sayılar
• DEMATEL
• ANP

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