This study evaluated the effectiveness of Siena College of San Jose, Inc.'s Faculty Development Program (FDP) to identify areas for improvement. Using document analysis, faculty feedback, stakeholder input, and evaluation surveys, the assessment applied the integrated rubric for FDP Design and Quality Standards. A 4-point Likert scale was used to measure faculty efficacy. Based on the results, FDP was rated very effective in rationale, participant profiling, content, methodology, assessment tools, workplace application, and resource expertise. However, it was rated effective in areas such as PPST alignment, learning objectives, session outputs, time allocation, learning resources, GESI integration, monitoring and evaluation, budgeting, and program management. Findings underscore the need for alignment with institutional standards, the Philippine Professional Standards for Teachers (PPST), and the Performance Management System (PMS) of the OP-Siena School System. The study contributes a theorem-based framework for enhancing faculty development tailored to institutional and contextual needs.

Keywords: assessment, effectiveness, faculty development, program, PPST, PMS, Institutional requirements, theorem of improvement