Accessibility means ease of access to features.
Accessibility is often associated with usability. However, features that boast in ease of access are often error prone.
Accessibility features should be judges according to the risks of operational errors.
Accessibility facilitates the command activation, and are prone to inadvertent errors
Accessibility means that the operator's command is promptly accepted, without asking the operators to verify that they activated the command with full awareness of the implications. Therefore, accessibility facilitates the command activation, but are prone to inadvertent errors.
Updated on 11 Jun 2016.