The matching person and technology model is an organizational framework to assess and recommend successful use of a variety of assistive technologies for people with disabilities: educational technology, and those used in the workplace, school, home; for healthcare, for mobility and performing daily activities. Specialized devices for hearing loss, speech, eyesight and cognition as well as general or everyday technologies are also included. Research shows that although a technology may appear perfect for a given need, it may be used inappropriately or even go unused when critical personality preferences, psychosocial characteristics or needed environmental support are not considered. The use and non-use of technology as conceptualized in the Matching person and technology model has been validated by many researchers and authors representing the fields of occupational therapy, physical therapy, speech language pathology, psychology, and others. The matching person and technology model is operationalized by a series of reliable and valid measures that provide a person-centered and individualized approach to matching individuals with the most appropriate technologies for their use. The matching person & technology model and measures were developed by Marcia J. Scherer beginning in 1986.