ACTIVITY - FROM ACTION TO ACTIVITY

In this article, existing terminology concerning occupational performa nce is reviewed. The authors conclude that the occupational therapy te rminology available is insufficient to describe levels of complexity i n the performance of an activity. Concepts are suggested to describe t he different aspects of an activity, namely operations, single actions , generated actions, action sequences, and simultaneous actions. The s uggested concepts are not intended to replace, but to supplement exist ing terminology.