Article 9 of the United Nations Convention on the Rights of Persons with Disabilities defines 'accessibility' as follows:

To enable persons with disabilities to live independently and participate fully in all aspects of life, States Parties shall take appropriate measures to ensure to persons with disabilities access, on an equal basis with others, to the physical environment, to transportation, to information and communications, including information and communications technologies and systems, and to other facilities and services open or provided to the public, both in urban and in rural areas (United Nations, 2006, p. 9).

Accessibility is a right to be ensured in all areas. These include education and the right to appropriate education and active citizenship through access to a flexible curriculum through personalised learning approaches.