InternationalTelecommunicationUnion
Geneva, 2 November 2009
Ergonomics-oriented design using ISO/IEC Guide 71 and ISO/TR 22411
Ken Sagawa,Prime Senior Researcher,
National Institute of Advanced Industrial Science and Technology (AIST), Japan
ITU-T Workshop"The impact of the United Nations Convention on the Rights
of Persons with Disabilities on the work of the ITU-T"Geneva, 2 November 2009
InternationalTelecommunicationUnionITU-T Workshop on Accessibility
Geneva, 2 November 20092
Accessible Design
Instruc3 times/day ・・・ ・・・
Extending standard design to people with special requirements (older persons and persons with disabilities) to maximize the number of potential users (from ISO/IEC Guide 71)
Map&
Plan
Article 9 - Accessibility
in “UN Convention on the Rights of Persons with Disabilities”
InternationalTelecommunicationUnionITU-T Workshop on Accessibility
Geneva, 2 November 20093
Guidelines for standard developers to address the needs of older persons and persons with disabilities
ISO/IEC Guide 71: 2001
Alternative format Location/LayoutLighting/glareColour/contrastSize/style of fontClear language Symbols/drawingsVolume/frequencySlow paceDistinctive formEase of handlingExpiration date making
How to designHow to consider
Contents labeling Surface temperature Accessible routesLogical processSurface finishNon-allergenic/toxicAcousticsFail-safeVentilationFire-resistance
Factors to consider
(Ergonomic issues)
InternationalTelecommunicationUnion
An example of Factors to consider (1)
ITU-T Workshop on AccessibilityGeneva, 2 November 2009
4
Alternative format (Vision Tactile)
Prepaid cards Containers
(milk container)
InternationalTelecommunicationUnion 5
An example of Factors to consider (2)
Sound pressure/frequency (of auditory signals )
Hearing sensitivity and auditory signals
( From Kurakata et al)ITU-T Workshop on AccessibilityGeneva, 2 November 2009
Warning
Termination
Feedback
InternationalTelecommunicationUnion
ISO/TR22411 (2008)
ITU-T Workshop on AccessibilityGeneva, 2 November 2009
6
ISO/TR 22411: 2008Ergonomic data and guidelines for the application of ISO/IEC Guide 71 to products and services to address the needs of older persons and persons with disabilities.
A collection of ergonomic data and design considerations relevant for accessible design to implement ISO/IEC Guide 71
(Developed by TC159/WG2)
InternationalTelecommunicationUnion
Contents of TR22411 (examples)
ITU-T Workshop on AccessibilityGeneva, 2 November 2009
7
Instructi3 times/day……………..
MAP
MEMO&
Sound pressure and frequency (hearing)
Working memory and attention (cognitive)
Tactile discrimination
Reach range(physical) Step height
(physical strength)
legible font size (vision)
Colour combination (vision)Useful visual field (vision)
InternationalTelecommunicationUnionITU-T Workshop on Accessibility
Geneva, 2 November 20098
Wavelength (nm )
Lu
min
ou
s e
fficie
ncy (
in log
un
it)
-3.5
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0.0
0.5
350 400 450 500 550 600 650 700 750
( a total of 91 subjects)
Average of people
in their 20s
Average of people
in their 70s
Contrast seen by an observer in their 20s
a sign example
sign
Background
Wavelength (nm)
Le, (sign)
.0000
.0005
.0010
.0015
.0020
400 450 500 550 600 650 700Sp
ect
ral ra
dia
nce
(W
m-2sr
-1)
Le, (back.)
spectral radiance data
Contrast seen by an observer in their 70s
Contrast =
= 34 %
Le,(sign) V(20)()Le,(back) V(20)()
Le,(sign) V(20)()+ Le,(back) V(20)()
0.0155 – 0.0760.0155 + 0.076
=
Spectral sensitivity of the eye as a function of age
(b) Visual contrast estimation
Age-related relative luminance contrast
Contrast =
= 6 %
Le,(sign) V(70)()Le,(back) V(70)()
Le,(sign) V(70)()+ Le,(back) V(70)()
0.0092 – 0.0820.0092 + 0.082
=
InternationalTelecommunicationUnionITU-T Workshop on Accessibility
Geneva, 2 November 20099
TC159 structure for Accessible Design
• Software accessibility• Tactile markings, etc
Anthropometry and BiomechanicsAnthropometry and Biomechanics
Ergonomics of Human-System InteractionErgonomics of Human-System Interaction
• Step height • Reach range
• Auditory signals • Visual contrast• Color combination • Speech announce guide• Visual signs for low vision, etc
TC159TC159
SC5SC5
SC4SC4
SC3SC3
SC1SC1
WG2WG2
Ergonomics of Physical EnvironmentErgonomics of Physical EnvironmentLiaison Officer +Advisory Group
Liaison Officer +Advisory Group
Ergonomic guiding principlesErgonomic guiding principles
• Principles and terminology
Ergonomics for people with special requirementsErgonomics for people with special requirements
• Ergonomic data and technical guide
ISO TCs and International Disability Parties
ISO TCs and International Disability Parties
InternationalTelecommunicationUnionITU-T Workshop on Accessibility
Geneva, 2 November 200910
Network of Disability Organizationsfor Accessible Design
WORLD FEDERATION OF THE DEAF
WORLD BLIND UNION
Int’l FEDERATION OF HARD OF HEARING PEOPLE
World Network of USERS AND SURVIVORS OFPSYCHIATRY
REHABILITATION INTERNATIONAL ORGANIZATION
THE WORLD FEDERATION OF THE DEAFBLIND
INCLUSION INTERNATIONAL
DISABLED PEOPLE’S INTERNATIONAL
EuropeDisable Forum
(EDF)
Arab DisableForum (AODP)
Asia Disable Forum (APDF)
TC159/AGAD
IDA
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