ISO 9999:2007 establishes a classification of assistive products especially produced, or generally available, for persons with disability. Assistive products used by a person with disability, but which require the assistance of another person for their operation, are included in the classification. The following items are specifically excluded from ISO 9999:2007: items used for the installation of assistive products;solutions obtained by combinations of assistive products which are individually classified in this International Standard;medicines;assistive products and instruments used exclusively by healthcare professionals;non-technical solutions, such as personal assistance, guide-dogs or lip-reading;implanted devices;financial support.