NO |
Principle |
Brief Explanation |
Guidelines |
1
|
Equitable Use
|
The design is useful and marketable to people with diverse abilities
| - Provide the same means of use for all users: identical whenever possible; equivalent when not.
- Avoid segregating or stigmatizing any users.
- Provisions for privacy, security, and safety should be equally available to all users.
- Make the design appealing to all users.
|
2
|
Flexibility in Use
|
The design accommodates a wide range of individual preferences and
abilities
| - Provide choice in methods of use.
- Accommodate right- or left-handed access and use.
- Facilitate the user's accuracy and precision.
- Provide adaptability to the user's pace.
|
3 |
Simple and intuitive |
Use of the design is easy to understand, regardless of the user's
experience, knowledge, language skills, or current concentration level |
- Eliminateunnecessary complexity.
- Be consistent with user expectations and intuition.
- Accommodate a wide range of literacy and language skills.
- Arrange information consistent with its importance.
- Provide effective prompting and feedback during and after task completion.
|
4 |
Perceptible Information |
The design communicates necessary information effectively to the user,
regardless of ambient conditions or the user's sensory abilities. |
- Use different modes (pictorial, verbal, tactile) for redundant presentation of essential information.
- Provide adequate contrast between essential information and its surroundings.
- Maximize "legibility" of essential information.
- Differentiate elements in ways that can be described (i.e., make it easy to give instructions or directions).
- Provide compatibility with a variety of techniques or devices used by people with sensory limitations.
|
5 |
Tolerance for Error |
The design minimizes hazards and the adverse consequences of accidental or unintended actions |
- Arrange elements to minimize hazards and errors: most used elements, most accessible; hazardous elements eliminated, isolated, or shielded.
- Provide warnings of hazards and errors.
- Provide fail safe features.
- Discourage unconscious action in tasks that require vigilance.
|
6 |
Low Physical Effort |
The
design can be used efficiently and comfortably and with a minimum of
fatigue. |
- Allow user to maintain a neutral body position.
- Use reasonable operating forces.
- Minimize repetitive actions.
- Minimize sustained physical effort
|
7 |
Size and Space for Approach and Use |
Appropriate size and space is provided for approach, reach,
manipulation, and use regardless of user's body size, posture, or
mobility. |
- Provide a clear line of sight to important elements for any seated or standing user.
- Make reach to all components comfortable for any seated or standing user.
- Accommodate variations in hand and grip size.
- Provide adequate space for the use of assistive devices or personal assistance.
|
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