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10 Accessibility to mobile interfaces for older people (introduction…
10 Accessibility to mobile interfaces for older people
abstract
guidelines & mobile & older people & accessibility & interface
based on literature review & standards & best practice
use checklist & survey of 3 apps on android
introduction
people age
mobile phones popular
older users need & generic users need -> not very different
namely: fully reliable personal communications and services to improve, as much as possible, safety and quality of life
mobile tech & devices vary a lot -> diffcult
:green_cross: Mobile Web Application Best Practices (MWABP)
:check: Mobile Web Best Practices (MWBP)
outline
outline
accessibility issues
guidelines
experimentation design of 3 apps
analysis & results & conclusions & outlines future research pespectives
accessibility and older people
older people need
need a greater degree of support in carrying out tasks and activities
a decline in a wide variety of abilities affect their everyday lives
study focus on
the use of Internet and the design of web sites for older people & no mobile
evolution of mobile technologies
bad
devices vary a lot
application designs don't take accessibility into consideration
good
assistive technologies & haptic interface
text to speech & speech to text
requirements for mobile communication systems
:check: mobile communication systems
:check: Security
:check: Social Integration
:check: Autonomy
guideline of mobile apps for the elderly
guidelines
:check: the Barriers Common to Mobile Device Users and People with Disabilities
:check: the Android Guidelines for developers
:check: the Web Design Guidelines by Panayiotis
:check: W3C
aspects
Perceivable
Operable
Understandable
Robust
:check: Google Inc.
descriptive text
accept input
audio prompts accompanied by visual prompt
Turn on TalkBack and Explore by Touch
:check: Panayiotis et al.
38 guidelines
11 categories
6 fit mobile apps
:check: Target design
larger targets
confirmation of target capture
not double click
:check: Use of Graphics
Graphics relevant & no decoration & no animation
image alt
icon simple & meaningful
:check: Browser Window Features
avoid scroll bars
only one open window & no animated ad & no multiple overlapping windows
:check: Content Layout Design
language -> simple & clear
no irrelevant info
important info highlight
info be concentrated in center
layout & navigation & terminology
simple & clear & consistent
:check: User Cognitive Design
ample time to read
no demand on working memory & support recognition & no recall & fewer choices
:check: Use of Color and Background
conservatively
no blue tone & no green tone
background no pure white & no rapid change in brightness & high contrast between foreground and background & no colored text on colored background
colors
experimental design
purpose
analyse three different applications taking into account the above accessibility checklist
more accessible one
device
Nexus 4 Smartphone with Android 4.2.2
apps
Big Launcher -> 4.5
Frontillo -> 4.5
Mobile Accesibility for Android -> 4.1
guidelines
the Barriers Common to Mobile Device Users and People with Disabilities
the Android Accessibility Practices
the Age-centered Research-Based Web Design Guidelines
Evaluation method
expert
1~5 scale
1 not at all addressed
5 completely implemented
analysis and results
purpose
test if the checkpoints and guidelines collected are suitable to address accessibility issues on mobile devices for elderly people
the application of these checkpoints allows us to make a ranking of the most accessible App of the three
:check: Big Launcher Application
2.3.1 Free version -> free & charge
strength
compatible with TalkBack
Touch system
iconography understandable
perfect size
more flexible allowing customization of buttons, theme changing, and so on
weakness
loses some functionality when no talkback
:check: App Fontrillo
1.0.10 version
strengths
interface easy to use
each operation has its own screen -> not lost in menu options
weakness
not 100 % compatible with TalkBack service
not any non-text alternatives for every image or menu screen;
other apps not integrated inside Fontrillo
:check: Mobile Accessibility for Android
2.05 version -> free for the first 30 days -> mainly for blind people
strengths
own voice service
weakness
voice service cannot be disabled
customize its default options
ranking
1 Big Launcher 4.11
2 Fontrillo 358
3 Mobile Accessibility for Android 347
Conclusions and future work
opinions
Accessibility issues should be a goal for developers
Accessibility requirements should be addressed early on the design phase in the development process
tools & guidelines for developers to follow
accessibility
warning -> alarming -> society is getting older and the number of disabilities continues to increase with age
prevent social exclusion and to encourage the access of elderly and disabled people to the technologies
future
IOS
task-oriented
context-dependent
correlation
sensorial
diffusion
generic
experimentation design
haptic
autonomy
nomenclature
promp
ample
conservatively
相关
感觉的
扩散
通用
实验设计
触觉
自治
命名法
promp
充足
保守