The past decade has seen immense change within the radiography profession internationally, as technical advancements and education and training initiatives have evolved to keep pace with the demands of the clinical environment. In Hong Kong (HK), it is necessary to establish a Continuous Professional Development (CPD) model for radiographers, to objectively monitor and assess the performance of individual radiographers throughout their working lives. Consequently, the current thesis aims: To investigate the need to implement a CPD scheme for Diagnostic Radiographers in HK, which will guide clinical performance and act as a means of monitoring the career progression of individuals within the profession. Information gained in this study will be used to identify the potential for improvement in radiography services and education via the creation of a CPD driven performance model. Objectives The objectives of this study are to: i) investigate and evaluate the current means of assessing clinical performance of Diagnostic Radiographers within the public hospitals in HK; ii) ascertain the views and opinions of relevant stakeholders on specialisation, CPD and role extension of Diagnostic Radiographers in HK; iii) suggest a CPD model for monitoring clinical performance of diagnostic radiographers at all levels of progress within the profession, based on the competencies identified and the consensus views of relevant stakeholders; iv) consult and seek professional views on the CPD model within the clinical environment in HK; v) establish a CPD model, following consultation feedback, for assessing clinical performance of Diagnostic Radiographers in HK that supports professional development. Methods The study used both quantitative and qualitative methods to collect data, by means of questionnaires and semi-structured interviews. The target population included all radiographers and radiologists employed within the HA, all radiography academics, and an Executive Manager (Allied Health