Abstract: One of the basic aspects that determines the success or failure in the use of assistive technologies on the part of people with disabilities is constituted by the ability that provide a disabled person with the technology that corresponds effectively to his needs and to his capabilities, thus to interpret correctly the problems and to find the right ways of transferring this technological "knowledge". If the aids answer the effective needs and capabilities of the person he can achieve significant improvement to reach the goals of his individual rehabilitative project. The article highlights the key factors of success.

Key words: assistive technologies, people with disability, Italian/ European vision, person-family-community-society, autonomy, relation, knowledge, empowered user