A functional disorder is defined as adaptation to the needs of the environment and the abilities or competencies required responding to such needs, which define the ability of the individual to function. A pathology modifies the interaction of the individual with his or her environment.

The aim is to minimize this modification by seeking optimal adaptation, a satisfactory interaction with the environment. The first step towards achieving this is a visit to the member’s home by the interdisciplinary team to evaluate the modifications and actions required. Changes are made in order to help the member involved to cope better. The aim is to achieve maximum autonomy thus improving the quality of life of both the member and his or her family.