Lean Six Sigma Studies in Türkiye: A Literature Review

Year 2024, Volume: 37 Issue: 2, 875 - 893, 01.06.2024

Nurcan Deniz , İlknur Tükenmez

https://doi.org/10.35378/gujs.1176313

Cited By: 1

Abstract

The literature in the field of Lean Six Sigma (LSS) is developing in Türkiye as well as over the world. However, theses and papers written in Turkish are waiting to be disseminated. This paper aims to investigate LSS in the Turkish context with the purpose of identifying the current state, gaining insight and exploring future directions. This paper implements the systematic literature review methodology to identify and review all relevant studies in Turkish literature. This paper covers the literature on LSS in Türkiye from 2004 to 2021. As a result, a total of 32 theses and 29 papers were investigated in detail. This paper not only focuses on years, sectors, areas etc. of the studies, but also analyses the contents of papers in relation to enterprise size, project prioritization, and quality tools used in DMAIC phases, and improvements after implementation in terms of descriptive and content analysis. The results show that, although there are many LSS implementations in Turkish context, they could not be shared with global academic area due to the national language usage. LSS implementations have an increasing trend in last years and highly focused on manufacturing sector and large companies. The lack of structured way of applying LSS, especially not using project prioritization and selection methodology takes attention. This paper shows the gaps and future directions in Türkiye for researchers and provides a groundwork to develop a roadmap for Turkish organizations.

Keywords

Lean Six Sigma, Lean, Six Sigma, DMAIC

References

• [1] Gerger, A., and Firuzan, A.R., “Reasons of failure in lean six sigma projects”, International Journal of Multidisciplinary Thought, 2(3): 123–130, (2012).
• [1] Gerger, A., and Firuzan, A.R., “Reasons of failure in lean six sigma projects”, International Journal of Multidisciplinary Thought, 2(3): 123–130, (2012).
• [2] Patel, A.S., and Patel, K.M., "Critical review of literature on lean six sigma methodology", International Journal of Lean Six Sigma, 12(3), 627-674, (2021).
• [2] Patel, A.S., and Patel, K.M., "Critical review of literature on lean six sigma methodology", International Journal of Lean Six Sigma, 12(3), 627-674, (2021).
• [3] Raval, S.J., and Kant, R., "Study on Lean Six Sigma frameworks: a critical literature review", International Journal of Lean Six Sigma, 8(3): 275-334, (2017).
• [3] Raval, S.J., and Kant, R., "Study on Lean Six Sigma frameworks: a critical literature review", International Journal of Lean Six Sigma, 8(3): 275-334, (2017).
• [4] Singh, M., and Rathi, R., "A structured review of lean six sigma in various industrial sectors", International Journal of Lean Six Sigma, 10(2): 622-664, (2019).
• [4] Singh, M., and Rathi, R., "A structured review of lean six sigma in various industrial sectors", International Journal of Lean Six Sigma, 10(2): 622-664, (2019).
• [5] Walter, O.M.F.C., and Paladini, E.P.,” Lean six sigma in Brazil: a literature review”, International Journal of Lean Six Sigma, 10(1): 435-472, (2019).
• [5] Walter, O.M.F.C., and Paladini, E.P.,” Lean six sigma in Brazil: a literature review”, International Journal of Lean Six Sigma, 10(1): 435-472, (2019).
• [6] Mishra, M.N., Mohan, A. and Sarkar, A., "Role of lean six sigma in the Indian MSMEs during COVID-19", International Journal of Lean Six Sigma, 12(4): 697-717, (2021).
• [6] Mishra, M.N., Mohan, A. and Sarkar, A., "Role of lean six sigma in the Indian MSMEs during COVID-19", International Journal of Lean Six Sigma, 12(4): 697-717, (2021).
• [7] Atmaca, E., and Girenes, S.S., “Literature survey: lean six sigma methodology”, Journal of the Faculty of Engineering and Architecture of Gazi University, 24(4): 605-612, (2011).
• [7] Atmaca, E., and Girenes, S.S., “Literature survey: lean six sigma methodology”, Journal of the Faculty of Engineering and Architecture of Gazi University, 24(4): 605-612, (2011).
• [8] Sreedharan, R.V., and Raju, R., "A systematic literature review of lean six sigma in different industries", International Journal of Lean Six Sigma, 7(4): 430-466. (2016).
• [8] Sreedharan, R.V., and Raju, R., "A systematic literature review of lean six sigma in different industries", International Journal of Lean Six Sigma, 7(4): 430-466. (2016).
• [9] Deniz, N., “Chapter 7: Continuous Improvement and Lean Quality Management” In Book: “Quality Management”, Anadolu University Press, Eskisehir, (2020).
• [9] Deniz, N., “Chapter 7: Continuous Improvement and Lean Quality Management” In Book: “Quality Management”, Anadolu University Press, Eskisehir, (2020).
• [10] Sheridan, J., “Aircraft-controls firm combines strategies to ımprove speed”, Flexibility and Quality, 22: 120-125, (2000).
• [10] Sheridan, J., “Aircraft-controls firm combines strategies to ımprove speed”, Flexibility and Quality, 22: 120-125, (2000).
• [11] Araman, H., Saleh, Y., “A case study on implenting lean six sigma: DMAIC methodology in aluminum profiles extrusion process”, Total Quality Management, (2021). DOI: https://doi.org/10.1108/TQM-05-2021-0154 [12] Danian, I., Adeodu, A., Mpofu, K., Maladzhi, R., and Katumba, M.G.K., “Application of lean six sigma methodology using DMAIC approach for the improvement of bogie aseembly process in the railcar industry”, Heliyon, 8(3): 1-14, (2022).
• [11] Araman, H., Saleh, Y., “A case study on implenting lean six sigma: DMAIC methodology in aluminum profiles extrusion process”, Total Quality Management, (2021). DOI: https://doi.org/10.1108/TQM-05-2021-0154 [12] Danian, I., Adeodu, A., Mpofu, K., Maladzhi, R., and Katumba, M.G.K., “Application of lean six sigma methodology using DMAIC approach for the improvement of bogie aseembly process in the railcar industry”, Heliyon, 8(3): 1-14, (2022).
• [13] Elgazzar, E., Attala, K., Abdel-Atty, S., Abdel-Raoff, A.M., “A screen printed methodology optimized by molecular dynamics simulation and lean six sigma for the determination of xylometazoline in the presence of benzalkonium chloride in nasal drops”, Talanta, 242: 123321, (2022).
• [13] Elgazzar, E., Attala, K., Abdel-Atty, S., Abdel-Raoff, A.M., “A screen printed methodology optimized by molecular dynamics simulation and lean six sigma for the determination of xylometazoline in the presence of benzalkonium chloride in nasal drops”, Talanta, 242: 123321, (2022).
• [14] Yadav, V., and Gahlot, P., “Green lean six sigma sustainability-oriented framework for small and medium enterprises”, International Journal of Quality & Reliability Management, (2022). DOI: https://doi.org/10.1108/IJQRM-08-2021-0297
• [14] Yadav, V., and Gahlot, P., “Green lean six sigma sustainability-oriented framework for small and medium enterprises”, International Journal of Quality & Reliability Management, (2022). DOI: https://doi.org/10.1108/IJQRM-08-2021-0297
• [15] Letchumanan, L., T., Gholami, H., Yusof, N.M., Ngadiman, N.H.A.B., Salameh, A.A., Streimikiene, D., and Cavallaro, F., “Analyzing the factors enabling green lean six sigma implementation in the industry 4.0 era”, Sustainability, 14: 3450, (2022).
• [15] Letchumanan, L., T., Gholami, H., Yusof, N.M., Ngadiman, N.H.A.B., Salameh, A.A., Streimikiene, D., and Cavallaro, F., “Analyzing the factors enabling green lean six sigma implementation in the industry 4.0 era”, Sustainability, 14: 3450, (2022).
• [16] Tzadok, B., Tov, O.B., Vaispapir, V., Shornikov, L., Marik, O., Martems, L., and Or, E.T., “Lean six sigma and stroke in rural hospital-Tha case of Baruch padeh medical center”, International Journal of Health care Quality Assurance, (2021). DOI: https://doi.org/10.1108/IJHCQA-01-2021-0005
• [16] Tzadok, B., Tov, O.B., Vaispapir, V., Shornikov, L., Marik, O., Martems, L., and Or, E.T., “Lean six sigma and stroke in rural hospital-Tha case of Baruch padeh medical center”, International Journal of Health care Quality Assurance, (2021). DOI: https://doi.org/10.1108/IJHCQA-01-2021-0005
• [17] Singh, A., and Ravi, P., “Lean six-sigma (LSS) applications in hospitals: A decade (2011-2020) bibliometric analysis”, International Journal of Productivity and Performance Management, (2022). DOI: https://doi.org/10.1108/IJPPM-07-2021-0432
• [17] Singh, A., and Ravi, P., “Lean six-sigma (LSS) applications in hospitals: A decade (2011-2020) bibliometric analysis”, International Journal of Productivity and Performance Management, (2022). DOI: https://doi.org/10.1108/IJPPM-07-2021-0432
• [18] Sohal, A., Vass, T.D., Vasquez, T., Bamber, G.J., Bartram, T., and Stanton, P., “Success factors for lean six sigma projects in healthcare, Journal of Management Control, (2022). DOI: https://doi.org/10.1007/s00187-022-00336-9
• [18] Sohal, A., Vass, T.D., Vasquez, T., Bamber, G.J., Bartram, T., and Stanton, P., “Success factors for lean six sigma projects in healthcare, Journal of Management Control, (2022). DOI: https://doi.org/10.1007/s00187-022-00336-9
• [19] Ibrahim, I., Sultan, M., Yassine, O.G., Zaki, A., Elamir, H., and Guirguis, W., “Using lean six sigma to improve timeliness of clinical laboratorytest results in a university hospital in Egypt, International Journal of Lean Six Sigma, (2022). DOI: http://dx.doi.org/10.1108/IJLSS-08-2021-0138
• [19] Ibrahim, I., Sultan, M., Yassine, O.G., Zaki, A., Elamir, H., and Guirguis, W., “Using lean six sigma to improve timeliness of clinical laboratorytest results in a university hospital in Egypt, International Journal of Lean Six Sigma, (2022). DOI: http://dx.doi.org/10.1108/IJLSS-08-2021-0138
• [20] Feldman, S.S., Nafziger, S.M., and Kpomblekou-Ademawou, E., “Critical Success factors for Addressing Discharge inefficiency at a large academic medical center”, Journal of Nursing Care Quality, 37(2): 135-141, (2021).
• [20] Feldman, S.S., Nafziger, S.M., and Kpomblekou-Ademawou, E., “Critical Success factors for Addressing Discharge inefficiency at a large academic medical center”, Journal of Nursing Care Quality, 37(2): 135-141, (2021).
• [21] Moffatt, S., Garry, C., McCann, H., Teeling, S.P., Ward, M., and McNamara, M., “The use of lean six sigma methodology in the reduction of patient length of stay following anterior cruciate ligament reconstruction surgery”, International Journal of Environmental Research and Public Health, 19, (2022). DOI: https://doi.org/10.3390/ijerph19031588
• [21] Moffatt, S., Garry, C., McCann, H., Teeling, S.P., Ward, M., and McNamara, M., “The use of lean six sigma methodology in the reduction of patient length of stay following anterior cruciate ligament reconstruction surgery”, International Journal of Environmental Research and Public Health, 19, (2022). DOI: https://doi.org/10.3390/ijerph19031588
• [22] Barcia, K.F., Garcia-Castro, L., Abad-Moran, J., “Lean six sigma Impact analysis on sustainability using partial least squares structural equation modeling (PLS-SEM): A literature review”, Sustainability, (2022). DOI: https://doi.org/10.3390/su14053051
• [22] Barcia, K.F., Garcia-Castro, L., Abad-Moran, J., “Lean six sigma Impact analysis on sustainability using partial least squares structural equation modeling (PLS-SEM): A literature review”, Sustainability, (2022). DOI: https://doi.org/10.3390/su14053051
• [23] Citybabu, G., Yamini, S., “The implemantation of lean six sigma framework in the Indian context: A review and suggestions for future research”, The TQM Journal, (2021). DOI: 10.1108/TQM-10-2021-0291
• [23] Citybabu, G., Yamini, S., “The implemantation of lean six sigma framework in the Indian context: A review and suggestions for future research”, The TQM Journal, (2021). DOI: 10.1108/TQM-10-2021-0291
• [24] Iyede, R., Fallon, E.F., and Donnellan, P., “An exploration of the extent of lean six sigma implemantation in the West od Ireland”, International Journal of Lean Six Sigma, 9(3): 444-462, (2018).
• [24] Iyede, R., Fallon, E.F., and Donnellan, P., “An exploration of the extent of lean six sigma implemantation in the West od Ireland”, International Journal of Lean Six Sigma, 9(3): 444-462, (2018).
• [25] Halnetti, A.D.P., Jayamaha, N., Grigg, N.P., and Tunnicliffe, M., “Lean six sigma through an Australasian lens: Project definition, structure and practices, International Journal of Lean Six Sigma, (2021). DOI:10.1108/IJLSS-07-2021-0132
• [25] Halnetti, A.D.P., Jayamaha, N., Grigg, N.P., and Tunnicliffe, M., “Lean six sigma through an Australasian lens: Project definition, structure and practices, International Journal of Lean Six Sigma, (2021). DOI:10.1108/IJLSS-07-2021-0132
• [26] Dolgui, A., Sgarbossa, F., Simonetto, M., “Design and management of assembly systems 4.0: systematic literature review and research agenda”, International Journal of Production Research, 60(1): 184–210, (2021).
• [26] Dolgui, A., Sgarbossa, F., Simonetto, M., “Design and management of assembly systems 4.0: systematic literature review and research agenda”, International Journal of Production Research, 60(1): 184–210, (2021).
• [27] Tranfield, D., Denyer, D., and Samrt, P., “Towards a methodology for developing evidence-informed management knowledge by means of systematic review”, British Journal of Mangement, 14(3): 207-222, (2003).
• [27] Tranfield, D., Denyer, D., and Samrt, P., “Towards a methodology for developing evidence-informed management knowledge by means of systematic review”, British Journal of Mangement, 14(3): 207-222, (2003).
• [28] Kaygusuz, Y., “Lean Six Sigma and a Case in a Manufacturing Firm”, Phd. Thesis, Uludağ University Institute of Social Sciences, Bursa, (2017).
• [28] Kaygusuz, Y., “Lean Six Sigma and a Case in a Manufacturing Firm”, Phd. Thesis, Uludağ University Institute of Social Sciences, Bursa, (2017).
• [29] Badwe, S. “Integrating Lean Six Sigma with Agile Software Development Methodology”, Phd. Thesis, Atılım University the Graduate School of Natural and Applied Sciences, Ankara, (2018).
• [29] Badwe, S. “Integrating Lean Six Sigma with Agile Software Development Methodology”, Phd. Thesis, Atılım University the Graduate School of Natural and Applied Sciences, Ankara, (2018).
• [30] Atmaca, E., and Girenes, S.S., “Literature survey: Six sigma methodology”, Suleyman Demirel University the Journal of Faculty of Economics and Administrative Sciences, 14(3): 111-126, (2009).
• [30] Atmaca, E., and Girenes, S.S., “Literature survey: Six sigma methodology”, Suleyman Demirel University the Journal of Faculty of Economics and Administrative Sciences, 14(3): 111-126, (2009).
• [31] Sayar, M., “Intelligent Business Process Management in Healthcare: Case Study in a Private Hospital”, MSc Thesis, Gediz University Graduate School of Social Sciences, İzmir, (2015).
• [31] Sayar, M., “Intelligent Business Process Management in Healthcare: Case Study in a Private Hospital”, MSc Thesis, Gediz University Graduate School of Social Sciences, İzmir, (2015).
• [32] Günalp, E., “Lean Six Sigma and a Company Application”, MSc Thesis, Istanbul Technical University Institute of Sciences, Istanbul, (2007).
• [32] Günalp, E., “Lean Six Sigma and a Company Application”, MSc Thesis, Istanbul Technical University Institute of Sciences, Istanbul, (2007).
• [33] Günday, Ü.R., “Lean Six Sigma Method and Its Application in Banking Sector”, MSc Thesis, Sakarya University Institute of Science, Sakarya, (2019).
• [33] Günday, Ü.R., “Lean Six Sigma Method and Its Application in Banking Sector”, MSc Thesis, Sakarya University Institute of Science, Sakarya, (2019).
• [34] Abeidi, N., “Implementation of Lean Six Sigma in Healthcare”, MSc Thesis, Fatih University The Graduate School of Sciences and Engineering, İstanbul, (2016).
• [34] Abeidi, N., “Implementation of Lean Six Sigma in Healthcare”, MSc Thesis, Fatih University The Graduate School of Sciences and Engineering, İstanbul, (2016).
• [35] Öztürkoğlu, Y., Kazancoğlu, Y., Sagnak, M., and Garza-Reyes, J.A., “Quality assurance for operating room illumination through lean six sigma”, International Journal of Mathematical, Engineering and Management Sciences, 6(3): 752-770, (2021).
• [35] Öztürkoğlu, Y., Kazancoğlu, Y., Sagnak, M., and Garza-Reyes, J.A., “Quality assurance for operating room illumination through lean six sigma”, International Journal of Mathematical, Engineering and Management Sciences, 6(3): 752-770, (2021).
• [36] Çallı, E., and Turan, G., “Agile retrospectives of lean six sigma approaches implementation”, UMYS 2018: Turkish National Software Engineering Symposium, Hacettepe University, Ankara, 2201: 15-25, (2018).
• [36] Çallı, E., and Turan, G., “Agile retrospectives of lean six sigma approaches implementation”, UMYS 2018: Turkish National Software Engineering Symposium, Hacettepe University, Ankara, 2201: 15-25, (2018).
• [37] İntepeler, Ş.S., Samur, M. and Dirik, H.F., “Using quality improvement tools in risk management: Medication error example”, Journal of Health Academics, 1(1): 67-73, (2014).
• [37] İntepeler, Ş.S., Samur, M. and Dirik, H.F., “Using quality improvement tools in risk management: Medication error example”, Journal of Health Academics, 1(1): 67-73, (2014).
• [38] Selimoğlu, S.K., Yeşilçelebi, G., and Altunel, M., “Improvement of ınternal audit process and risk management tools: FMEA and Six sigma”, Journal of Accounting and Finance, August: 201-208, (2021).
• [38] Selimoğlu, S.K., Yeşilçelebi, G., and Altunel, M., “Improvement of ınternal audit process and risk management tools: FMEA and Six sigma”, Journal of Accounting and Finance, August: 201-208, (2021).
• [39] Inal, T.C., Goruruoglu, O., Kibar, F., Cetiner, S., Natyar, S., Daglioglu, G., and Yaman, A., “Lean six sigma methodologies improve clinical laboratory efficiency and reduce turnaround times”, Journal of Clinical Laboratory Analysis, 32: 1-5, (2018).
• [39] Inal, T.C., Goruruoglu, O., Kibar, F., Cetiner, S., Natyar, S., Daglioglu, G., and Yaman, A., “Lean six sigma methodologies improve clinical laboratory efficiency and reduce turnaround times”, Journal of Clinical Laboratory Analysis, 32: 1-5, (2018).
• [40] Yılmaz Yalçıner, A., and Günday, R., “Lean six sigma method and its application in banking sector”, Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 8: 188-209, (2020).
• [40] Yılmaz Yalçıner, A., and Günday, R., “Lean six sigma method and its application in banking sector”, Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 8: 188-209, (2020).
• [41] Doğan, O., and Gürcan O.F., “Data Perspective of Lean Six Sigma in Industry 4.0 Era: a Guide to Improve Quality”, Proceedings of the International Conference on Industrial Enginnering and Operations Management, Paris, (2018).
• [41] Doğan, O., and Gürcan O.F., “Data Perspective of Lean Six Sigma in Industry 4.0 Era: a Guide to Improve Quality”, Proceedings of the International Conference on Industrial Enginnering and Operations Management, Paris, (2018).
• [42] Krippendorff, K. “Content Analysis: An Introduction to Its Methodology”, Thousand Oaks, CA: Sage, (2004).
• [42] Krippendorff, K. “Content Analysis: An Introduction to Its Methodology”, Thousand Oaks, CA: Sage, (2004).
• [43] Girenes, Ş.S., “Lean Six Sigma Methodology and Application”, MSc Thesis, Gazi University Institute of Science and Technology, Ankara, (2006).
• [43] Girenes, Ş.S., “Lean Six Sigma Methodology and Application”, MSc Thesis, Gazi University Institute of Science and Technology, Ankara, (2006).
• [44] Güzel, G., “Optimum Mix for Product Formulation Experiment Design-a Design Approach to Six Sigma”, MSc Thesis, Yıldız Technical University Institute of Science, Istanbul, (2008).
• [44] Güzel, G., “Optimum Mix for Product Formulation Experiment Design-a Design Approach to Six Sigma”, MSc Thesis, Yıldız Technical University Institute of Science, Istanbul, (2008).
• [45] Arıkan, H., “Lean Six Sigma Methodology and an Application”, MSc Thesis, Uludağ University Institute of Social Sciences, Bursa, (2009).
• [45] Arıkan, H., “Lean Six Sigma Methodology and an Application”, MSc Thesis, Uludağ University Institute of Social Sciences, Bursa, (2009).
• [46] Çakır, E., “Lean Six Sigma and an Implementation”, MSc Thesis, Dokuz Eylül University Graduate School of Business Administration, İzmir, (2011).
• [46] Çakır, E., “Lean Six Sigma and an Implementation”, MSc Thesis, Dokuz Eylül University Graduate School of Business Administration, İzmir, (2011).
• [47] Yıldırım, C., “Lean Six Sigma Methodology and an Applied Study”, MSc Thesis, Marmara University Institute for Graduate Studies in Pure and Applied Sciences, İstanbul, (2011).
• [47] Yıldırım, C., “Lean Six Sigma Methodology and an Applied Study”, MSc Thesis, Marmara University Institute for Graduate Studies in Pure and Applied Sciences, İstanbul, (2011).
• [48] Küçük, M., “Improvement of Logistics Processes of a Factory that Produces Steel Pipe”, MSc Thesis, Uludağ University Graduate School of Natural and Applied Sciences, Bursa, (2013).
• [48] Küçük, M., “Improvement of Logistics Processes of a Factory that Produces Steel Pipe”, MSc Thesis, Uludağ University Graduate School of Natural and Applied Sciences, Bursa, (2013).
• [49] Karakoç, H., “Lean Six Sigma Techniques and a Practise in the Food Firm”, MSc Thesis, Erciyes University Graduate School of Natural and Applied Sciences, Kayseri, (2017).
• [49] Karakoç, H., “Lean Six Sigma Techniques and a Practise in the Food Firm”, MSc Thesis, Erciyes University Graduate School of Natural and Applied Sciences, Kayseri, (2017).
• [50] İlbeyli, U., “Supporting Lean Six Sigma with Taguchi Method and An Application”, MSc Thesis, Dokuz Eylül University Institute of Social Sciences, İzmir, (2021).
• [50] İlbeyli, U., “Supporting Lean Six Sigma with Taguchi Method and An Application”, MSc Thesis, Dokuz Eylül University Institute of Social Sciences, İzmir, (2021).
• [51] Yıldız, C., “Lean Six Sigma in Logistics Industry Application: Ekol Logistics Sample”, MSc Thesis, İstanbul Okan University Institute of Social Sciences, İstanbul, (2020).
• [51] Yıldız, C., “Lean Six Sigma in Logistics Industry Application: Ekol Logistics Sample”, MSc Thesis, İstanbul Okan University Institute of Social Sciences, İstanbul, (2020).
• [52] Çelebi Gürsoy, G., “An Application on the Textile Sector Towards to Process Improvement with the Methodology of Lean Six Sigma”, MSc Thesis, Düzce University Institute of Social Sciences, Düzce, (2020).
• [52] Çelebi Gürsoy, G., “An Application on the Textile Sector Towards to Process Improvement with the Methodology of Lean Six Sigma”, MSc Thesis, Düzce University Institute of Social Sciences, Düzce, (2020).
• [53] Özdemir, Y., “Application of Six Sigma Methodology on Total Cycle Time: Lean Six Sigma”, MSc Thesis, Dokuz Eylül University, Institute of Social Sciences, İzmir, (2004).
• [53] Özdemir, Y., “Application of Six Sigma Methodology on Total Cycle Time: Lean Six Sigma”, MSc Thesis, Dokuz Eylül University, Institute of Social Sciences, İzmir, (2004).
• [54] Sandal, C., “Integration of ISO 9001:2000 with Six Sigma and Automotive Organization Case Study”, MSc Thesis, Dokuz Eylül University, Institute of Technology, İzmir, (2008).
• [54] Sandal, C., “Integration of ISO 9001:2000 with Six Sigma and Automotive Organization Case Study”, MSc Thesis, Dokuz Eylül University, Institute of Technology, İzmir, (2008).
• [55] Düğme, F.Z., “A Guide for Construction Companies to Apply Lean Six Sigma Methodology”, MSc Thesis, Middle East Technical University, Institute of Science, Ankara, (2008).
• [55] Düğme, F.Z., “A Guide for Construction Companies to Apply Lean Six Sigma Methodology”, MSc Thesis, Middle East Technical University, Institute of Science, Ankara, (2008).
• [56] Alper, B., “Lean Six Sigma Methodology and an Application in a Defense Industry Company”, MSc Thesis, Çankaya University, The Graduate School of Natural and Applied Sciences, Ankara, (2019).
• [56] Alper, B., “Lean Six Sigma Methodology and an Application in a Defense Industry Company”, MSc Thesis, Çankaya University, The Graduate School of Natural and Applied Sciences, Ankara, (2019).
• [57] Unal, A.S., “Termoform Makinaları Üreten Bir Firmada Yalın Altı Sigma Uygulaması”, İstanbul Kültür University Institute of Graduate Education, İstanbul, (2021).
• [57] Unal, A.S., “Termoform Makinaları Üreten Bir Firmada Yalın Altı Sigma Uygulaması”, İstanbul Kültür University Institute of Graduate Education, İstanbul, (2021).
• [58] Akdamar, E. “An Application about Lean Six Sigma and Continuous Improvement Process”, MSc Thesis, Uludağ University Institute of Social Sciences, Bursa, (2014).
• [58] Akdamar, E. “An Application about Lean Six Sigma and Continuous Improvement Process”, MSc Thesis, Uludağ University Institute of Social Sciences, Bursa, (2014).
• [59] Tanık, M., “Improvement of mold setting times with SMED methodology: a lean six sigma implementation”, Muğla Üniversitesi Sosyal Bilimler Enstitüsü Dergisi, 25(2): 117-140, (2010).
• [59] Tanık, M., “Improvement of mold setting times with SMED methodology: a lean six sigma implementation”, Muğla Üniversitesi Sosyal Bilimler Enstitüsü Dergisi, 25(2): 117-140, (2010).
• [60] Zeydan, M., “Optimization of flexible polyurethane foam hardness by reducing process variance”, Sigma Journal of Engineering and Natural Sciences, 38(4): 1851-1867, (2020).
• [60] Zeydan, M., “Optimization of flexible polyurethane foam hardness by reducing process variance”, Sigma Journal of Engineering and Natural Sciences, 38(4): 1851-1867, (2020).
• [61] Avunduk, H., “Lean six sigma: A process improvement implementation in a pet blower machine”, Electronic Journal of Social Sciences, 18(70): 633 – 653, (2019).
• [61] Avunduk, H., “Lean six sigma: A process improvement implementation in a pet blower machine”, Electronic Journal of Social Sciences, 18(70): 633 – 653, (2019).
• [62] Gülsüm, N., “Reduction of Wrap Breaks in Weaving Preparation Through Lean Techniques”, MSc Thesis, İzmir University of Economics, The Graduate School of Natural and Applied Sciences, İzmir, (2017).
• [62] Gülsüm, N., “Reduction of Wrap Breaks in Weaving Preparation Through Lean Techniques”, MSc Thesis, İzmir University of Economics, The Graduate School of Natural and Applied Sciences, İzmir, (2017).
• [63] Pakdil, F., “Six sigma Project prioritization and selection methods: a systematic literature review”, International Journal of Lean Six Sigma, 13: 382-407, (2021).
• [63] Pakdil, F., “Six sigma Project prioritization and selection methods: a systematic literature review”, International Journal of Lean Six Sigma, 13: 382-407, (2021).
• [64] Şahin B.K., “Optimization of Flexible Polyurethane Foam Manufacturing Process with the Experimental Design”, MSc Thesis, Erciyes University, Graduate School of Natural and Applied Sciences, Kayseri, (2019).
• [64] Şahin B.K., “Optimization of Flexible Polyurethane Foam Manufacturing Process with the Experimental Design”, MSc Thesis, Erciyes University, Graduate School of Natural and Applied Sciences, Kayseri, (2019).
• [65] Gerger, A., and Demir, B., “An example of increasing the service customer satisfaction rate the use of lean six sigma in automotive services”, Electronic Journal of Vehicle Technologies, 2(1): 33-47, (2010).
• [65] Gerger, A., and Demir, B., “An example of increasing the service customer satisfaction rate the use of lean six sigma in automotive services”, Electronic Journal of Vehicle Technologies, 2(1): 33-47, (2010).
• [66] Muganyi, P., Madanhire, I., and Mbohwa, C., Business survival and market performance through Lean Six Sigma in the chemical manufacturing industry, International Journal of Lean Six Sigma, 10(2):566-600, (2019).
• [66] Muganyi, P., Madanhire, I., and Mbohwa, C., Business survival and market performance through Lean Six Sigma in the chemical manufacturing industry, International Journal of Lean Six Sigma, 10(2):566-600, (2019).
• [67] Yakar, B., “A Systematic Perspective on Supply Chain Improvement by Using Lean Six Sigma and an Implementation at a Fertilizer Company”, MSc Thesis, Marmara University, Institute for Graduate Studies in Pure and Applied Sciences, İstanbul, (2019).
• [67] Yakar, B., “A Systematic Perspective on Supply Chain Improvement by Using Lean Six Sigma and an Implementation at a Fertilizer Company”, MSc Thesis, Marmara University, Institute for Graduate Studies in Pure and Applied Sciences, İstanbul, (2019).
• [68] Akan, C., “Lean Six Sigma and Implementation in Machining Industry”, MSc Thesis, Kırşehir Ahi Evran University Science and Engineering Institute, Kırşehir, (2020).
• [68] Akan, C., “Lean Six Sigma and Implementation in Machining Industry”, MSc Thesis, Kırşehir Ahi Evran University Science and Engineering Institute, Kırşehir, (2020).
• [69] Shukuralsrraf, A., “Foam Process Optimization with Design of Experiment”, MSc Thesis, Erciyes University Graduate School of Natural and Applied Sciences, Kayseri, (2019).
• [69] Shukuralsrraf, A., “Foam Process Optimization with Design of Experiment”, MSc Thesis, Erciyes University Graduate School of Natural and Applied Sciences, Kayseri, (2019).
• [70] Özveri, O., and Çakır, E., “Lean six sigma and an implementation”, Afyon Kocatepe University Journal of the Faculty of Economics and Sciences, 14(2): 17-36, (2012).
• [70] Özveri, O., and Çakır, E., “Lean six sigma and an implementation”, Afyon Kocatepe University Journal of the Faculty of Economics and Sciences, 14(2): 17-36, (2012).
• [71] Nalcıoğlu, H., “Lean Six Sigma Based Methodology for the Localization of Material Supply: an Application in Steel Industry”, MSc Thesis, Marmara University Institute for Graduate Studies in Pure and Applied Sciences, İstanbul, (2016).
• [71] Nalcıoğlu, H., “Lean Six Sigma Based Methodology for the Localization of Material Supply: an Application in Steel Industry”, MSc Thesis, Marmara University Institute for Graduate Studies in Pure and Applied Sciences, İstanbul, (2016).
• [72] Çelebi Gürsoy, G., and Yıldız, M.S., “A case study for process improvement with lean six sigma in a textile industry”, Journal of Business Research-Turk, 13(2): 1553-1573, (2021).
• [72] Çelebi Gürsoy, G., and Yıldız, M.S., “A case study for process improvement with lean six sigma in a textile industry”, Journal of Business Research-Turk, 13(2): 1553-1573, (2021).
• [73] Kurt Özden, B., “The Effect of Game-Based Learning in Lean Production and Lean Six Sigma Training”, MSc Thesis, Abdullah Gül University the Graduate School of Engineering and Science, Kayseri, (2019).
• [73] Kurt Özden, B., “The Effect of Game-Based Learning in Lean Production and Lean Six Sigma Training”, MSc Thesis, Abdullah Gül University the Graduate School of Engineering and Science, Kayseri, (2019).
• [74] Dönmez, C.Ç., and Yakar, B., “A systematic perspective on supply chain improvement by using lean six sigma and an implementation at a fertilizer company”, Electronic Journal of Social Sciences, 18(71): 1377-1396, (2019).
• [74] Dönmez, C.Ç., and Yakar, B., “A systematic perspective on supply chain improvement by using lean six sigma and an implementation at a fertilizer company”, Electronic Journal of Social Sciences, 18(71): 1377-1396, (2019).
• [75] Apilioğulları, L., “A process Quality improvement case study by lean six sigma and industry 4.0 integration”, Journal of Social Sciences of Mus Alparslan University, 8(5): 1497-1504, (2020).
• [75] Apilioğulları, L., “A process Quality improvement case study by lean six sigma and industry 4.0 integration”, Journal of Social Sciences of Mus Alparslan University, 8(5): 1497-1504, (2020).
• [76] Demiralp, M., “Critical Success Factors of Lean Six Sigma and an Application in a Multinational Corporation”, MSc Thesis, Gazi University Institute of Social Sciences, Ankara, (2014).
• [76] Demiralp, M., “Critical Success Factors of Lean Six Sigma and an Application in a Multinational Corporation”, MSc Thesis, Gazi University Institute of Social Sciences, Ankara, (2014).
• [77] Kayacık, S., “Yalın Altı Sigma Metodolojisi ve Tekstil Sektöründe Bir Uygulama”, MSc Thesis, Marmara University Institute of Social Sciences, İstanbul, (2010).
• [77] Kayacık, S., “Yalın Altı Sigma Metodolojisi ve Tekstil Sektöründe Bir Uygulama”, MSc Thesis, Marmara University Institute of Social Sciences, İstanbul, (2010).
• [78] Sağnak, M., and Kazancoğlu, Y., “Integration of green lean approach with six sigma: an application for flue gas emissions”, Journal of Cleaner Production, 127: 112-118, (2016).
• [78] Sağnak, M., and Kazancoğlu, Y., “Integration of green lean approach with six sigma: an application for flue gas emissions”, Journal of Cleaner Production, 127: 112-118, (2016).
• [79] Can, G.F., Tokta, P., and Pakdil, F., “Six sigma project prioritization and selection using AHP-CODAS integration: A case study in healthcare industry”, IEEE Transactions on Engineering Management, (2021). DOI: 10.1109/TEM.2021.3100795
• [79] Can, G.F., Tokta, P., and Pakdil, F., “Six sigma project prioritization and selection using AHP-CODAS integration: A case study in healthcare industry”, IEEE Transactions on Engineering Management, (2021). DOI: 10.1109/TEM.2021.3100795
• [80] Pakdil, F., Toktaş P., and Can G.F., “Six sigma project prioritization and selection: a multi-criteria decision making approach in healthcare industry”, International Journal of Lean Six Sigma, 12(3): 553-578, (2020).
• [80] Pakdil, F., Toktaş P., and Can G.F., “Six sigma project prioritization and selection: a multi-criteria decision making approach in healthcare industry”, International Journal of Lean Six Sigma, 12(3): 553-578, (2020).
• [81] Uluskan, M., “Analysis of lean six sigma tools from a multidimensional perspective”, Total Quality Management & Business Excellence, 30(10): 1167-1188, (2019).
• [81] Uluskan, M., “Analysis of lean six sigma tools from a multidimensional perspective”, Total Quality Management & Business Excellence, 30(10): 1167-1188, (2019).