Postgraduate study are university-level courses for students who have either an undergraduate degree or significant work/life experience in the study area. Postgraduate courses include graduate certificates, graduate diplomas and masters degrees.
There are various pathways to a postgraduate program. It is possible in some instances to enrol in a university-level graduate certificate or graduate diploma on the basis of relevant employment or life experience. From here you can progress to a higher level postgraduate qualification such as a master by coursework on the basis of your success in these courses.