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