ergonomics

My definition of ergonomics: To use with ease; Design that maximises possibilities for success and minimises possibilities for failure; Inclusive design - inclusive of all ages, stages, abilities and ambitions; Design for adaptability and accessibility Safe design - health promoting, accident avoiding; Efficient design; Effective design Multi-sensory and multi-language; Rich environment

The Principles of Universal Design
[] The Center for Universal Design at North Carolina State University expounds the following principles: [|[2]] These principles are broader than those of [|accessible design] and barrier-free design.
 * 1) [|Equitable] use
 * 2) [|Flexibility] in use
 * 3) [|Simple] and [|intuitive]
 * 4) [|Perceptible] information
 * 5) [|Tolerance for error]
 * 6) Low physical effort
 * 7) Size and space for approach and use

Examples

 * Smooth, ground level, entrances without stairs
 * Surface textures that required low force to traverse on level, less than 5 pounds force per 120 pounds rolling force
 * Surface that are stable, firm and with slip resistant per ASTM 2047
 * Wide interior doors, hallways, and alcoves with 60" x 60" turning space at doors and deadends
 * Functional clearances to approach and use elements and components
 * Lever handles for opening doors rather than twisting knobs
 * Single hand operation with closed fist for operable components including fire alarm pull stations
 * Components that do not require tight grasping pinching or twisting of the wrist
 * Components that require less than 5 pounds of force to operate
 * Light switches with large flat panels rather than small toggle switches
 * Buttons and other controls that can be distinguished by touch
 * Bright and appropriate lighting, particularly task lighting
 * Auditory output redundant with information on visual displays
 * Visual output redundant with information in auditory output
 * Contrast controls on visual output
 * Use of meaningful icons with text labels
 * Clear lines of sight to reduce dependence on sound
 * Volume controls on auditory output
 * Speed controls on auditory output
 * Choice of language on speech output
 * Ramp access in swimming pools
 * Closed [|captioning] on television networks
 * Signs with light on dark visual contrast
 * Web pages that provide alternative text to describe images
 * Instruction that presents material both orally and visually
 * Labels on equipment control buttons that is large print
 * Provides visual and audio descriptions and instructions.