title: Activity--from action to activity.
abstract: In this article, existing terminology concerning occupational performance is reviewed. The authors conclude that the occupational therapy terminology available is insufficient to describe levels of complexity in the performance of an activity. Concepts are suggested to describe the different aspects of an activity, namely operations, single actions, generated actions, action sequences, and simultaneous actions. The suggested concepts are not intended to replace, but to supplement existing terminology.
authors.forename: L
authors.initials: L
authors.lastname: Haglund
authors.forename: C
authors.initials: C
authors.lastname: Henriksson
mesh_terms: D000203:Activities of Daily Living; D006801:Humans; D008297:Male; D009788:Occupational Therapy / Q000379:methods / Q000592:standards; D009626:Terminology as Topic; D014937:Work