CEN Guide 6 - Guidelines for standard developers to address the needs of older persons and persons with disabilities

Table 5 — Factors to consider in clauses on the user interface

This is the area in which attention to factors can have most impact on usability by a wide range of users.

Factors to consider in standards clauses on user interface (handling, controls and feedback)
Human abilities
9.2 Sensory
9.3 Physical
9.4 Cognitive
9.5 Allergy
9.2.1
Seeing
9.2.2
Hearing

9.2.3 Touch
9.2.4
Taste/ smell
9.2.5
Balance

9.3.1
Dexterity

9.3.2
Manipu-
lation

9.3.3
Movement

9.3.4
Strength
9.3.5
Voice

9.4.2/3
Intellect/ memory

9.4.4
Language/ literacy

9.5.2/3/4
Contact/ food/ respiratory
8.2 Alternative format                          
8.3 Location/layout                          
8.4 Lighting/glare                          
8.5 Colour/contrast                          
8.6 Size/style of font                          
8.7 Clear language                          
8.8 Symbols/drawings                          
8.9 Loudness/pitch                          
8.10 Slow pace                          
8.11 Distinctive form                          
8.12 Ease of handling                          
8.15 Surface temperature                          
8.17 Logical process                          
8.18 Surface finish                          
8.19 Non-allergenic/toxic                          
8.20 Acoustics                          
8.21 Fail-safe                          

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