The Impact of Project Management Knowledge Maturity on Project Performance: Focusing on the Moderating Effect of Sustainable Competency

The knowledge framework for effective project management has been rapidly evolving in response to the increasingly dynamic external environment, with sustainability emerging as a critical issue. Accordingly, achieving project success now requires not only traditional management capabilities but also the integration of sustainable competencies. This study examines the relationship between the maturity of core project management knowledge areas and project performance through regression analysis, and further investigates the moderating effect of sustainable competency. The analysis revealed that planning management and delivery management had the most significant impact on project performance, while sustainable competency played a moderating role in the relationship between certain knowledge areas and project outcomes. These findings underscore the strategic value of project management and highlight the necessity of an integrated approach to achieving sustainable performance. Furthermore, the results provide foundational insights for the practical application and potential expansion of the renewed project management framework.