1、A Tale of Two Operating Systems: A demonstration of the accessibility tools within Windows 7 and Snow Leopard (Mac OS X) that affect individuals with vision impairments,Amy Salmon, Hadley School for the Blind Korey Singleton, GMU Assistive Technology InitiativeAER Virginia Conference March 3rd-5th,
2、2010,Presentation Agenda,Introductions Amy & Korey Purpose of todays presentation What we hope you will gain? What you will not get?Windows 7 Accessibility Tools Mac OS X Accessibility ToolsQuestion & Answer,Windows 7 Accessibility,Has made some significant accessibility improvements:Magnifier now i
3、ncludes a lens mode and full-screen mode. On-Screen Keyboard can be resized to make it easier to see and includes text prediction. Includes more ways to interact with PC by taking advantage of new strides in speech recognition and touch technology.Today, as it relates to Windows 7, we will focus spe
4、cifically on Magnifier, Narrator, and other ways to make text on the screen larger or smaller.,Ease of Access Center Provides a centralized location in Control Panel where you can adjust accessibility settings and programsCan be accessed in one of three ways: Going through Start Menu/Control Panel B
5、y pressing Windows Key + U When first logging onto Windows,Windows 7 Accessibility cont.,Where do you start?,Designed for individuals with low visionImprovements 3 different magnification modes Docked, Lens mode, Full-screenImproved magnification quality, up to 16 timesCursor tracking by mouse, keyb
6、oard, or text-editing,Windows 7 Accessibility cont.,Windows Magnifier,Increasing font or icon sizes in Windows without changing optimal resolutionAccess this feature by going to Control Panel, Appearance and Personalization link, and then choosing Display. This gives you the ability to permanently i
7、ncrease screen size to 125% or 150%.Can also access the Set custom text size (DPI) link in left navigation pane for a different setting. (Warning: This setting can affect how programs are displayed to user),Windows 7 Accessibility cont.,Other ways to make text larger or smaller,Zooming in or out of
8、a document, presentation, or worksheet in MS Office 2007Sliding bar in bottom right corner of status bar View tab, Zoom group choose a preset Zoom setting or use custom (up to 400%) With mouse, hold down control key and use scroll wheelSaving the Zoom setting in Word, PowerPoint, or ExcelIn Word, op
9、en document or template, choose Zoom setting, add and delete a single space, and then save the document In PowerPoint or Excel, open document or template, choose Zoom setting, and then save the document,Windows 7 Accessibility cont.,Other ways to make text larger or smaller,Provides user with basic
10、navigation (menus, dialog boxes, typing) in Windows OSImprovements New “Narrator Key” , which is the Insert key Improved text reading functionality,Windows 7 Accessibility cont.,Windows Narrator,Zoom (screen magnification) Activated by: Keyboard shortcuts Universal Access button on the screen Trackp
11、ad gesture The scroll ball (or wheel) on a mouse. Note: Quartz rendering engine in Mac OS X, makes it so that text, graphics, and motion video can be magnified without affecting system performance.,Mac OS X Accessibility,Other Notable features in Zoom: Full-screen magnifier Magnifies up to 40x. Thre
12、e options for how the cursor tracking Moves continuously as you move the cursor Moves only when the cursor reaches the edge of the screen Moves so that the cursor remains in the middle of the screen great for those with a narrow field of vision. Possible to set a minimum and maximum magnification va
13、lue for instant zooming to a particular magnification and to prevent the magnification from going too high or low, leaving the system unreadable. Image smoothing High contrast/Grayscale settings,Mac OS X Accessibility cont.,Adjusting Finder views Four ways to adjust views: icon, list, column, Cover
14、Flow Cover Flow provides large previews of folder contents.View Options within Finder view Can change icon sizes, background settings, text sizes, etc. This is independent of Universal Access settingsDock Magnification The Dock offers a convenient way to access commonly used applications, files, and
15、 folders. As you drag items into the Dock, it automatically resizes to accommodate new items. Though the icons can be quite small if you add a great many items, Mac OS X lets you set the default size of Dock icons so theyre easier to see and provides Dock Magnification, which automatically enlarges
16、the icon youre pointing to.,Windows 7 Accessibility cont.,Other magnification options,Advanced, full-featured screen reader for Mac OS XSnow Leopard (Mac OS X v10.6) includes VoiceOver 3In addition to screen-reading functionality built into over full-feature screen readers, VoiceOver added made impr
17、ovements in VoiceOver 3 Gesture support* Braille display mirroring* Improved web support (table support, web shots, reading of full webpages, etc) Improved verbosity (3 levels) completely customizable, added spoken hints,Windows 7 Accessibility cont.,VoiceOver,VoiceOver offers many help and support
18、tools to get started accessing web pages, email, calendar, word processing, etc right out of the box.,Windows 7 Accessibility cont.,VoiceOver cont,Other nice features: Built-in support for over 40 Refreshable Braille Displays (Bluetooth and USB)Braille Panel onscreen tool provides assistance for sig
19、hted users working alongside braille users.Braille display mirroring - enables you to connect up to 32 USB braille displays (or one Bluetooth display and up to 31 USB braille displays) simultaneously to a single Mac. Great tool for teaching/learning.Portable preferences take your preferences with yo
20、u on a USB driveGestures Control your computer with VoiceOver using simple gestures like tap and flick on a multi-touch trackpad.Customizable keyboard shortcuts through “Commanders” interface TrackPad Commander Keyboard Commander NumPad CommanderScripting capability using AppleScript and Automator Integration (similar to running macros),Windows 7 Accessibility cont.,VoiceOver cont,Questions?,Questions,Accessibility in Microsoft Products - Windows 7 Windows 7 keyboard shortcuts Apple Accessibility Vision webpage Mac OS X keyboard shortcuts VoiceOver In Depth,References/Sources,
