Point of Sale Machines
A point of sale (POS) machine is a type of interactive device that allows customers of a business to conduct self-service financial transactions. Examples include credit card payment terminals, retail store self-checkout stations, movie theater ticket machines, machines used for ordering food at convenience stores or quick service restaurants, airport check-in machines, and gas station pay-at-the-pump systems. The number of POS machines in use is increasing, and the range of transactions handled by these machines continues to expand.
POS machines can reduce transaction times, enhance privacy, and provide greater convenience for many shoppers. However, as the reliance on POS machines to conduct business with the public increases, the importance of providing POS machines that are accessible to people with disabilities increases as well. POS machines pose a number of accessibility issues. The physical design of these types of devices, which are often large and designed to be used by users in a standing position, can result in difficulties for users with lower mobility impairments. Interacting with the various components of POS machines can be difficult for users with upper mobility impairments, and the lack of standardization in the layout of components among machines can make create difficulty for users with visual impairments. POS machines sometimes have complex user interfaces that support a diverse range of functions, and the complexity of the interface can pose problems for users with cognitive impairments. Other aspects of the design of user interfaces for POS machines can cause problems for users with impaired vision or hearing, as well.
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Impacts of Accessibility Issues
Accessibility issues associated with laptop computers impact users with the following disability types: