残疾人（如视觉、听觉、身体）在使用计算机和其他信息/通信技术（ICT）设备时可能会遇到困难。ISO/IEC 24786:2009中定义的可访问用户界面，如果他们能够在使用前调整可访问性设置，可以帮助他们操作计算机。如果这是不可能的，一些人将无法在没有另一方帮助的情况下访问这些设备。ISO/IEC 24786:2009规定了使辅助功能设置可访问的要求和建议。这将确保残疾人能够自行调整无障碍设置，从而使信息技术更加无障碍。ISO/IEC 24786:2009提供了关于特定辅助功能设置的指导。它指定了如何访问和操作辅助功能设置模式，以及如何直接激活特定的辅助功能功能。ISO/IEC 24786:2009适用于计算机上的所有操作系统用户界面，但也可酌情适用于其他类型的ICT。在操作系统加载和激活之前，它不适用于用户界面。

People with disabilities (e.g. visual, hearing, physical) can experience difficulties in accessing computers and other information/communication technology (ICT) devices. Accessible user interfaces, as defined in ISO/IEC 24786:2009, can help them to operate computers if they are able to adjust accessibility settings prior to use. If this is not possible, some people will not be able to access these devices without help from another party.

ISO/IEC 24786:2009 specifies requirements and recommendations for making accessibility settings accessible. This will make the information technologies more accessible by ensuring that people with disabilities can adjust accessibility settings by themselves.

ISO/IEC 24786:2009 provides guidance on specific accessibility settings. It specifies how to access and operate the accessibility setting mode, and how to directly activate specific accessibility functions.

ISO/IEC 24786:2009 applies to all operating system user interfaces on computers, but can also be applied to other types of ICT, where appropriate. It does not apply to the user interface before the operating system is loaded and active.