Applying Six Sigma to Assess Quality Culture in a Senior High School: A Strategic Management Perspective

Objective: This study examines the application of Six Sigma to assess quality culture in a senior high school in Bandung, with potential relevance for broader educational settings. Method: Employing a mixed-method case study design, the research combined interviews and Focus Group Discussions (FGDs) to identify the main dimensions of quality culture, followed by a questionnaire-based assessment involving 42 teacher respondents. Using the DMAIC framework (Define, Measure, Analyze, Improve, and Control), the study assessed school quality culture across eight indicators. It analyzed their performance using Defects Per Million (DPM) and sigma levels. Results: The findings show that the weakest dimensions were understanding of the vision and mission (2.25), involvement in developing the vision and mission (2.14), and school programs that reflect social values (2.59). Novelty: These results suggest that Six Sigma can serve as a practical evaluative tool for translating the abstract concept of quality culture into measurable dimensions, identifying priority areas for school-based improvement, and supporting strategic management in educational institutions.