Activity analysis is a fundamental skill for occupational therapists that involves identifying the skills and abilities required to complete an activity. There are three perspectives on activity analysis: activity-focused, client-focused, and environment-client-focused. Vacuuming is analyzed as an example activity where the required motions, strengths, cognitive skills and safety considerations are identified. The activity can then be adapted based on a client's goals by changing the objects used, environmental demands, or sequencing of steps.