act of doing and accomplishing a selected action (performance skill), activity, or occupation ... that results from the dynamic transaction among the client, the context, and the activity. Improving o, result of a dynamic interwoven relationship between person, environment, and occupation; the ability to choose, organise and satisfactorily perform meaningful occupations, dünaamiline suhe inimese, keskkonna ja tegevuse vahel, mis võimaldab rahuldavalt täita oma rolle ning sooritada vajalikke tähendusrikkaid tegevusi