<![CDATA[This study analyzes the influence of transformational leadership, Management Information Systems (MIS), and organizational commitment on the professional development of teachers at SMPN Dayun Subdistrict. The research uses a quantitative correlational approach, involving all teachers through a saturated sampling technique. Data were collected using questionnaires and analyzed through path analysis with SmartPLS. The findings show that transformational leadership has a significant positive effect on teacher professional development (β = 0.464; T = 4.962; p = 0.000). MIS also demonstrates a significant positive effect (β = 0.384; T = 3.151; p = 0.000), as does organizational commitment (β = 0.498; T = 6.187; p = 0.000). Organizational commitment acts as a strong predictor mediating the influence of transformational leadership (β = 0.788) and MIS (β = 0.808) on professional development. The structural model indicates that transformational leadership and MIS jointly explain 56.5% of the variation in teacher professionalism (R² = 0.565), confirming their dominant role in enhancing teacher professional competence.]]>
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