This research aims to reduce the costs associated with inviting external examiners for graduate examinations at the Institute of Engineering, Suranaree University of Technology. By applying Lean thinking, the study identifies inefficiencies and streamlines examination processes to enhance operational performance. The research began with an analysis of expenditure data from the past five years, covering honoraria, travel expenses, accommodation, and related costs. Preliminary findings revealed that onsite examinations were the primary cost driver, accounting for 48% of total expenditures. This created a significant budgetary burden and hindered administrative flexibility. Using Lean principles as a framework, the current workflow was mapped to identify "waste" or non-value-added activities. A redesigned process was implemented, transitioning from onsite to online examinations. This shift eliminated travel and lodging requirements while maintaining academic standards through structured video conferencing and digital documentation systems. Results demonstrate that the Lean-based transition to online platforms reduced total costs by 51.24%. Significant savings were achieved in logistics, leaving honoraria as the primary remaining expense. This study confirms that Lean applications in higher education can effectively minimize waste and optimize resource utilization without compromising quality. These findings serve as a strategic model for academic institutions seeking sustainable cost-reduction and operational excellence.

Keywords

Lean Thinking, Cost Reduction, Graduate Examination, Online Examination, Process Improvement