This module encompasses two major components: APN role development and theoretical foundations of nursing practice. The first component aims to provide fundamental aspects of advanced practice nursing including historical background, role development, competencies, conceptualisation, outcome evaluation, and regulations. Major emphases will be placed on the application and integration of APN competencies into actual practice settings in Singapore. Factors affecting APN role development and transitions will be explored. The second part of the module discusses the development of nursing theories and their contribution to the development of nursing science. Conceptual models and theories will be used to guide students in critical thinking, reasoning, and decision-making for their advanced practice nursing role. The application of theories and models to critique existing theories will be emphasized.