presentation angie radke and kor dwarshuis on the dutch joomla!day april 5th 2008
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Angie Radtke 2008
Tim Berners Lee said:„ Thepower of the Web is in its universality. Access by everyone regardless ofdisability is an essentialaspect."
Angie Radtke 2008
max.
reach
More popularitity& Image
PR-effect
fast
loading
new customer contacts more regular users
increase in sales
Accessible Websites
easy touse
Target group
Google &co
More subsites
Customersatisfaction
Angie Radtke 2008
Visual impairment
„ 25% of all people,inhomogeneous groupinhomogeneous group,,from nearsightednessfrom nearsightedness toto color color blindness tillblindness till absolutabsolut blindnessblindness
Angie Radtke 2008
Visual impairment – color blindness
Take care of the contrast
and color-difference
Angie Radtke 2008
Visual impairment:
texttext--zoomzoomresolution adjustmentresolution adjustmentcustom stylesheetscustom stylesheets
IE:IE: viewview / text/ text--sizesizeMozilla:Mozilla: viewview / Text Zoom/ Text Zoom
Angie Radtke 2008
Visual impairment:
seperation content layout no inlinestyles
relative font-sizes
flexible layouts
no font-images
no images with transparentbackground
Angie Radtke 2008
Visual impairment:Technical equipment
monitorinvertationmonitorinvertation
Windows:Windows: Start / Einstellungen / Start / Einstellungen / Systemsteuerung / Eingabehilfen / Systemsteuerung / Eingabehilfen / Anzeige / Einstellungen fAnzeige / Einstellungen füür den Kontrast.r den Kontrast.
Angie Radtke 2008
Visual impairment:Technical equipment
monitormonitor zoomzoom lenslens
Windows:Windows: Start / Programme / Start / Programme / ZubehZubehöör / Eingabehilfen / r / Eingabehilfen / Bildschirmlupe.Bildschirmlupe.
Angie Radtke 2008
Visual impairment: Blind people
ScreenreaderScreenreaderacoustic output or acoustic output or sending informationsending information totoBraillelineBrailleline
each lettereach letter ofof the alphatet is the alphatet is represented byrepresented by 88 raised dotsraised dots
Angie Radtke 2008
Visual impairment: Blind people
linearisationlinearisation,,semanticsemantic,,skiplinksskiplinks,, skiplinks for formsskiplinks for formsaltalt--texttextaccessible formsaccessible forms
Angie Radtke 2008
motor handicaps
keyboardkeyboard andand mouse arenmouse aren‘‘ttusableusablearmsarms,, fingers not usablefingers not usableneurologic diseasesneurologic diseases
You canYou can alsoalso be hit by thisbe hit by this::the batterythe battery ofof your mouse is emptyyour mouse is empty
Angie Radtke 2008
motor handicaps
clear structurclear structur //logical buildlogical build
nono mousemouse--eventsevents
logical taborderlogical taborder
adequate sizeadequate size ofof navigationnavigation--elementselements
a:a:focusfocus/a:/a:activeactive
Angie Radtke 2008
deaf people – deaf culture
readread andand writewrite inin part part difficultdifficult
VideosVideos
expensiveexpensive
Angie Radtke 2008
Mental disabilities
easy navigationeasy navigation
clean andclean and optical clear fontsoptical clear fonts
many headingsmany headings
shortshort andand easy contentseasy contents
Ideogramme andIdeogramme and symbolssymbols
Angie Radtke 2008
Older people & situational disabilities
limited sightlimited sight
untrained webusersuntrained webusers
f.e.f.e.judderjudder and badand bad light light conditionsconditions inin traintrain
Angie Radtke 2008
Beez Features
Sematic markupSematic markup
LinearLinear structurestructure
SkiplinksSkiplinks //formsforms
HeaderlevelsHeaderlevels//modulesmodules
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