An occupational therapist works with a client to help them achieve a fulfilled and satisfied state in life through the use of "purposeful activity or interventions designed to achieve functional outcomes which promote health, prevent injury or disability and which develop, improve, sustain or restore the highest possible level of independence." A practical definition for OT can also be illustrated with the use of models such as the Occupational Performance Model (Australia), known as the OPM(A). At the core of this approach is the ideology that occupational therapists are concerned with the occupations of people and how these contribute to health. Specifically it is a person's occupational performance that influences their health and personal satisfaction of their individual needs. The OPM