These design guidelines focus on user-system interfaces and interfaces between operating systems, middleware, application software, and other software layers, to facilitate the development of interfaces to systems and products that are intended for use by people with the widest range of capabilities. Accessibility is closely related to the concept of usability, and the properties of these concepts overlap and intertwine in so many ways among various applications, tasks, devices, and users, that the boundary between them is unavoidably fuzzy. A primary goal of these design guidelines is human-system interfaces with increased usability that promote increased effectiveness, efficiency, and satisfaction for people who have a wide variety of capabilities and preferences. The purpose of this American National Standard is to specify design guidance for human-system software interfaces to provide the highest level of accessibility for as many users as possible. MouseKeys, RepeatKeys, ToggleKeys, SoundSentry, ShowSounds and SerialKeys Appendix B (Informative): StickyKeys, SlowKeys, BounceKeys, FilterKeys,.A.5 Individuals with other disabilities.

A.3 Neuromusculoskeletal and movement related functions.

Appendix A (Informative): Issues Regarding Activity Limitations.

11 Online Documentation, Help, and Support Services.

10.7 Text equivalents of audio (captions).

8.5 Compatibility with assistive technology.

8.4 General control and operation guidelines.

8.3 Special considerations for accessibility adjustments.

8.1 Names and labels for user interface elements.

6 Sources of Variation in User Characteristics.

5 Rationale and Benefits of Implementing Accessibility.

HUMAN FACTORS ENGINEERING OF SOFTWARE USER INTERFACES

END OF PREAMBLE (NOT PART OF THE STANDARD) In the Federal Register and, upon effect, in the Code of Federal Regulations. The reformatting of this document was performed by for the noncommercial purpose of promoting understanding of proposed and promulgated regulations from the U.S.

This document was reformatted from a PDF originally obtained from the Human Factors and Ergonomics Society ( ).

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