A profession whose focus is to help the client to prevent, solve, alleviate or cope with problems associated with the activities he or she carries out in order to live.
Roper, Logan and Tierney , 1990
A profession that assists the person sick or well in the performance of those activities contributing to health or its recovery (or to a peaceful death) that he or she would perform unaided, given the necessary strength, will or knowledge.
Henderson, 1966
A human service related to the clients’ need and ability to undertake self-care and to help them sustain health, recover from disease and injury or cope with their effects.
Orem, 1980
A socially valued service whose goal is to promote a positive adaptation to the stimuli and stresses encountered by the client.
Roy, 1971