Table 1 The principles of the universal design [12]
Principles | Description |
|---|---|
1. Equitable use | The design is useful and marketable to people with diverse abilities |
2. Flexibility in use | The design accommodates a wide range of individual preferences and abilities |
3. Simple and intuitive use | Use of the design is easy to understand, regardless of the user’s experience, knowledge, language skills or current concentration level |
4. Perceptible information | The design communicates necessary information effectively to the user, regardless of ambient conditions or the user’s sensory abilities |
5. Tolerance for error | The design minimises hazards and the adverse consequences of accidental or unintended actions |
6. Low physical effort | The design can be used efficiently and comfortably and with a minimum of fatigue |
7. Size and space for approach and use | Appropriate size and space is provided for approach, reach, manipulation and use, regardless of the user’s body size, posture, or mobility |