Purpose: The purpose of this paper is to demonstrate the applicability and impact of Lean Six Sigma (LSS), a contemporary quality excellence methodology, for improving education system in a reputed University in Iran. Design/methodology/approach: The paper follows a case study approach illustrating how theory has been put into practice, explaining how to implement the LSS define-measure-analyze-improve-control framework in a field-setting in a higher education institution (HEI), and to highlight the subsequent challenges occurred and lessons learned during the implementation. Findings: The key finding from the study is the confirmation of LSS applicability in education systems. The goals of the LSS team were to baseline student satisfaction levels and improve the overall rating by 10 percent; to decrease student advising wait times by 15 percent; and increase enrollment by 5 percent. The application of the LSS methodology has delivered promising results to improve the education system of the University by achieving the set goals. Further, the implementation of LSS has demonstrated student-facing benefits of improved quality on the education system. Research limitations/implications: LSS implementation in HEIs is relatively a new topic for research. Hence, this case study adds to the body of knowledge with directions to progress future research in this area. Practical implications: The outputs of the case study have provided greater stimulus within the facilities for wider full-blown deployment of LSS as a strategic resource for problem solving. Additionally, this case study sets the foundation for many other future projects, and to trigger interest among the HEIs in their journeys for quality excellence. Social implications: Higher education sector being a socially responsible field of service, LSS offers continuous improvement benefits, highlighted as part of this paper. Originality/value: The applicability of LSS in HEIs is relatively an upcoming research area with immense potential and value. This paper would serve as a valuable means for both researchers and practitioners working in HEIs, in terms of understanding the systematic application of the LSS methodology, and implications in a real-world situation. © 2019, Emerald Publishing Limited.
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