Development and Remediation Guidelines

When software either does not respond or ignores the accessibility features set by the user, it is considered to be disrupting the feature. There are two major features that you should be aware of: object sizing and sound.

Object Sizing

It is important for users to be able to control the size of the objects on the screen. Some users may prefer to see as many objects as possible (even if very small), while others have difficulty reading or interacting with small objects and would prefer fewer objects on the screen. Use these guidelines to assist in conforming to this provision:

• Windows provides user settings for fonts as well as spacing issues (the size of other objects, such as buttons, should be adjusted according to the font size). However, many software applications ignore some of these settings and hard code fonts and sizes into the interface. Thus, software applications should be designed to follow the system settings.
• Where possible, allow users to size or zoom individual regions on the screen (e.g., increasing the font in a text entry region without impacting other interface objects [e.g., buttons]).
• Avoid small fixed fonts (e.g., smaller than 10 pt) and small mouse targets (e.g., small specialized buttons).
• Avoid having fixed-size windows. Provide options for either scaling the contents or displaying more information. Also, use scroll bars when the content does not fit in one window.

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