Old presentations such as this are interesting to view - this presentation from 2010 makes little reference to the wide use of mobile devices, tablets or ebook readers.
2. Expanding Horizons Through ICT
What is Assistive
Technology?
Any technology that helps people with disabilities
to perform a function or activity that they wouldn’t
be able to perform otherwise.
3. Expanding Horizons Through ICT
Types of Assistive Technologies we
will discuss today
•AT for Physical Disabilities
•AT for Sensory Disabilities (Vision and Hearing)
•AT for Learning Difficulties
4. Expanding Horizons through ICT The promise
Plan for the session
•Introduction to computer accessibility
•Physical Disabilities:
•Keyboard alternatives/adaptations
•Mouse alternatives/adaptations
•Sensory Disabilities:
•Altering the computer output
•Learning Difficulties :
•Basic tools and techniques
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Assistive Technologies for Access to
ICT
•Rapidly growing area of AT
•Opportunities for independent living
•Communication
•Tele-learning
•Potential for flexible employment
•Entertainment
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Computer Components
•Processor
•Memory
•Memory Storage Devices
•Input devices
•Output devices
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Operating systems
•Windows
•Mac
•Linux
•Others (e.g. text based operating system, simplified systems)
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Common Applications
•Communication
•Internet
•Messaging (SMS, Chat, Email)
•Voice/Video (mobile comms, VOIP)
•Word-processing
•Media Creation/Management
•Office Applications
•Leisure
•E-books
•Games
•Online Shopping etc…
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Computer Access Strategies
•Workstation positioning/ergonomics
•Adaptations & Alternatives to the standard keyboard/mouse
•Adaptations & Alternatives to the standard monitor/output
•Performance enhancement
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Computer Access Tools
•Operating System Accessibility Tools
•Accessibility Software
•Access software
•Performance enhancement
•Educational software
•Accessibility Hardware
•Alternative access devices
•Adaptations
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Workstation positioning and ergonomics
Important to establish optimum position for access
Factors:
Visual ergonomics
Access method ergonomics
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Visual Ergonomics
•Relate position of screen to client
•Consider use of external keyboard/monitor
•Consider visual requirements of access method – does the
client need to see this and the screen simultaneously
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Access Method Ergonomics
Avoid:
•Repetitive Strain Injury
•Abnormal Tone
•Associated movements
•Startle reflex
•Intention tremor / ataxia
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Keyboard Adaptations : Stabilize Control
•Key guards
•Wrist rests
•Keyboard Positioning
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Keyboard Adaptations: Extend Control
Hand pointers, dowels, sticks
Head pointers, headwand
Mouthstick
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Keyboard adaptations: Change Layout
•Dvorak
•Right handed Dvorak
•Left handed Dvorak
•Chubon
•Alphabetic
•Frequency of use (scanning)
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Alternative Keyboard Arrangements
Dvorak
1 2 3 4 5 6 7 8 9 0 [ ]
‘ , . p y f g c r l / =
a o e u i d h t n s -
; q j k x b m w v z
Left hand Dvorak
= - / p f m l j 4 3 2 1
; q b y u r s o . 6 5
k c d t h e a z 8 7
‘ x g v w n i , 0 9
Right Hand Dvorak
1 2 3 4 j l m f p / - =
5 6 q . o r s u y b ;
7 8 z a e h t d c k
9 0 x , i n w v g ‘
Chubon for one pointer
‘ [ ] 3 2 1 v u p 6 7 8 =
- 4 q m i t s c k z 9 :
5 j g n r e h b y x 0
/ ‘ f o a d l w
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Keyboard Adaptations: Operating
System Changes
Keyboard Settings:
Start - > Control Panel
Keyboard
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Keyboard Adaptations: Operating
System Changes
•Repeat Delay
First time before
repeats character
•Repeat Rate
Time between
characters
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Keyboard Adaptations: Operating System Changes
Accessibility Options
Start->Control Panel
Accessibility Options
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Keyboard Adaptations: Operating System Changes
StickyKeys
Lock control keys on
FilterKeys
Ignore repeated presses
ToggleKeys
Sounds for control keys
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Alternatives to the Standard Keyboard
•Alternative keyboards
•Speech Recognition
•Onscreen keyboard
•General Input Device Emulating Interfaces (GIDEIs)
•Serial Keys
•Coded access (i.e., Morse Code)
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Alternative Keyboards
•Mini Keyboards
•Expanded Keyboards
•Chording keyboards
•Touch Screen
•AAC/Other devices
•Morse Code
•Serial Keys
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Alternative Keyboards – Windows On
Screen Keyboard
Start ->Programs
-> Accessories
-> Accessibility Options
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Alternatives to Keyboards - Speech Recognition
•Ideal for dictation style tasks
•Requires consistent/clear speech
•Requires visual monitoring
•Not for all environments
•Cognitively demanding
•Requires training
•Best used in conjunction with other methods
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Mouse Adaptations: Operating System
Changes
Start ->Control Panel
->Mouse
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Mouse Adaptations: Operating System
Changes
Mouse Driver Adjustments
Tracking Speed
Click Speed
Trails
Radar
Cursor Size
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Mouse Adaptations: Operating System Changes
MouseKeys
Start ->Control Panel
Accessibility Options
‘Mouse’ Tab
Control the mouse
using the number pad
arrows
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Mouse Adaptations: Keyboard Equivalents
Allow control of computer through keyboard
Possible to use most aspects of computer without mouse
Some ‘global’ shortcuts (e.g. Ctrl+C)
List of Windows shortcuts online
Some program specific shortcuts
Look these up in the help file
Alt / Tab – allow you to access menus
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Group Work
Operating System Accessibility Options:
Mouse Adaptations
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Mouse Alternatives
•Trackball
•Joysticks
•Touch Pad
•Touch screen, touch window
•Hands-free mouse, ultrasonic mice,
infrared reflective mice
•Speech Recognition
‘MouseGrid’
Control of Menus
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Mouse Alternatives cont…
Head Mouse
Scanning
Morse Code
Eye gaze
Integrated Devices
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Eye Gaze
Direct Selection
Expensive
‘Magic Touch’ effect
What you look at is what you get
Requires stable positioning
Systems improving in this
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Alternatives to Standard Clicking
Switches
Hand switch
Foot switch etc…
Timed Clicking - Dwell
Keyboard Clicking
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Computer Performance Enhancement
•Word Prediction/Word Completion
•Abbreviation Expansion
•Keyboard shortcuts
•Macro Applications
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Word Prediction/Completion
THE RE
1 RENT
2 REST
3 REAL
4 REALLY
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Abbreviation Expansion
ASAP As soon as possible.
HU? How are you doing?
Can be done in Word
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Keyboard Shortcuts
Lots of keyboard shortcuts
Eliminate the need for the mouse entirely!
If used well, decrease the amount of switching between
keyboard/mouse
Save effort and time
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Macros
•Often-done tasks
Starting up certain programs (e.g. Internet)
•‘Mouse-heavy’, or ‘Mouse Only’ tasks
Assign a key to click the centre of the screen
Assign a key to open all your emails…
•Automate complex tasks
Single key to copy/paste
•Anything!
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Sensory Disabilities - Vision
General ways to help someone with Visual Impairment:
• Appearance
• Visual Themes
• Color Contrast
• Magnification
• Alternative senses of communication
• Audio
• Tactile
- Same principles apply to provide computer access to people with
Vision Impairment
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• Changing the colour scheme
can make the easier to read
text and viewing images
• Color schemes can be fully
customised for each user
• High Contrast color schemes
tend to work best for people
with low vision
Color Schemes
Sensory – Vision Impairment
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• Up to a basic degree such
scheme modifications can be
done from within Windows
• There are various Assistive
Technology software that
provide more flexibility and
allow us to do this to much
greater extent
Color Schemes
Sensory – Vision Impairment
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• Enlarging the contents of the
screen greatly improves the
usability of a computer for people
with low vision
• Can be achieved by various
means:
• Accessibility options within
Windows
• Magnification Software
• Desktop CCTV Magnifiers
• Handheld Video Magnifiers
Magnification
Sensory – Vision Impairment
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• A screen reader is a software that interprets what is being displayed on the screen
and outputs it via the computer speakers
• Often used in conjunction with a Magnification software by people with low vision
• Often used in conjunction with a Braille Display by blind people
Screen Readers
Sensory – Vision Impairment
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Group Work
Operating System Accessibility Options:
Appearance, Magnification, and Screen Reader
Sensory – Vision Impairment
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• Braille is a system in which characters (text
& numbers) are represented by a
combination of dots laid out in specific
shapes
• Braille display is an electro-mechanical
device for displaying Braille characters,
usually by means of raising dots through
holes in a flat surface
Braille Display
Sensory – Vision Impairment
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• Portable Braille Notetakers
Portable Solutions for the Blind
Sensory – Vision Impairment
• Daisy Book Readers
• Solutions for Mobile Phones
• Talks & Zoom (Screen Reader & Magnifier) [Symbian OS]
• Mobile Speak Gold (Screen Reader, Magnifier, Color Recognizer) [Symbian
OS / Windows Mobile]
• Oratio (Screen Reader) [Blackberry]
• Eyes Free (Screen Reader, Modify Visual Layout) [Android Phones]
• iPhone Accessibility Suite (Screen Reader, Magnifier, Color Contrast
Modification) [iPhone]
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Sensory – Hearing Impairment
General ways to help someone with Hearing Impairment:
• Visual Notifications
• Flash screens
• Sign Language
• Communicate information via Text
• Auditory Amplification
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Sensory – Hearing Impairment
• Some helpful options are available within Windows
Start >> Control Panel >> Ease of Access Control Panel
>> Use text or visual alternatives for sounds
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Sensory – Hearing Impairment
• Close Captioning
Closed captioning displays an interpretation of the audio
portion of a video as it occurs, sometimes including non-speech
elements.
Close Captioning solution examples
• Dotsub (Online)
• Magpie
• Deaf Blind Communication
•Voice to sign language
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Text is easier to create and edit than handwriting
Diary and organisational software available
Dictionaries, Thesaurus, Encyclopedias, online resources can
improve written communication
“Get Round” Technology allows writer to concentrate on the
message they want to get across rather than how to write it
Finding information in electronic documents easier than trawling
through a book if you are struggling to read
How a computer can help
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Spelling and punctuation can be left until writer has
expressed most of their ideas. Specialised spellcheckers
can help as standard utilities don’t always look at context
(see ode to the spellchecker!)
Text manipulation and planning tools allow the structure
to be decided later
The writer can forget that writing is difficult and
concentrate on the needs of the reader
Student can be encouraged to write more
Encourages Speed
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Clarity of image on screen
More readable than handwritten text whilst working
Professional finish of printout
Positive impact on motivation and self esteem
Clarity and Presentation
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Physically easier to press a key than to form a letter
Some can struggle when remembering how to draw a
letter – b-d-p-q – can be particular problems
Keyboard and Typing
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Choice of keyboard
Uppercase helps with confusables such as b & d (B & D)
Lowercase keyboards available if struggling with capitals
ABC if QWERTY difficult or to reinforce alphabet learning
High contrast or larger letter stickers are available
Basic keyboards to minimise distraction
Keyboard and Typing
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Evidence to say that people learn finger patterns
rather than spelling of actual words
free Touch Typing Tutor
www.sense-lang.org/typing
Touch-Typing
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Fonts
This is an example of Times New Roman - 33pt
This is an example of Arial - 33pt
This is an example of Comic Sans – 33pt
This is an example of Verdana – 33pt
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Line Spacing
Ctrl + 1 = Single spacing Ctrl + 5 = 1.5 spacing
Double Spacing can help – highlight the text and
press Ctrl + 2 on the keyboard.
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AutoCorrect
Corrects common errors
automatically.
Capitalises first letter of a sentence
and names of days, months etc.
Abbreviation Expansion
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Changing the colour
scheme within Windows can
make the text easier to read
Schemes can be fully
customised for each user
Colour Schemes
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+
=
Helps to identify errors in:-
Punctuation
Spelling errors
Incorrect words
Missed words
Extra words
Scanning and Text to Speech
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Mind Mapping
• Inspiration
• Mind Manager
• SparkSpace
•Freemind
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Uses:
• People with limited or no hand skills
• People with Dyslexia
• Quick text entry for non-Touch Typists
• People with RSI
Voice Recognition
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Advantages:
•Spelling always correct
•Quick to input text
•Can be used hands-free
Disadvantages:
•Steep learning curve (training recommended)
•Requires ordered thinking skills
•Needs consistent & fairly clear speech
Considerations:
•Computer specifications
Mouse control requires a number of skills:
Moving the pointer to the target
Selecting the desired target – maintaining the pointer on the target while activating and activating the click button at the appropriate time
Dragging – maintaining hold on the click button while moving the pointer
Moving between use of keyboard or emulator and the mouse or pointing device