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Katherine Schramm CMPT 817 November 28, 2013. Accessibility Guidelines for Touch Devices. Context. Identify the context of your project Discuss why this project is good for usability engineering (1 slide - 1 - 2 minutes)
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Katherine Schramm CMPT 817 November 28, 2013 Accessibility Guidelines for Touch Devices
Context • Identify the context of your project • Discuss why this project is good for usability engineering • (1 slide - 1 - 2 minutes) • contains: title for slide and outline of points that you will discuss to justify why your project is helpful/useful and for who it is helpful/useful
Analysis • ISO 9241-20: Ergonomics — Accessibility guidelines for ICT equipment and services • ISO 9241-171: Ergonomics — Guidance on software accessibility • ISO 13066-1: Information Technology — Interoperability with Assistive Technology • ISO 29136: Information Technology — Accessibility of personal computer hardware.
Analysis • Accessibility Programming Guide for iOS. • <https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/iPhoneAccessibility/Accessibility_on_iPhone/Accessibility_on_iPhone.html>. • Android Developer Guidelines on Accessibility • <http://developer.android.com/design/patterns/accessibility.html> • <http://developer.android.com/guide/topics/ui/accessibility/index.html>
Analysis • Guerreiro, Tiago, Paulo Lagoá, Hugo Nicolau, Daniel Gonçalves, and Joaquim A. Jorge. "From tapping to touching: Making touch screens accessible to blind users." IEEE MultiMedia 15, no. 4 (2008): 0048-50. • Jain, Mohit, and Ravin Balakrishnan. "User learning and performance with bezel menus." In Proceedings of the 2012 ACM annual conference on Human Factors in Computing Systems, pp. 2221-2230. ACM, 2012.
Methodology • Read sources on accessibility for touch devices • Explored the accessibility settings on my own iOS devices • Read through ISO standards, and applied previous knowledge to form analysis
Results • Lots of guidelines can apply as they currently are • Give UI elements succinct, meaningful names; Text labels for images; Individualize user preference settings, look and feel • Individualization of cursor/pointer • Enable user control of timed responses • Support assistive technologies
Results • Enable software-controlled media extraction • Somewhat relevant • Keyboard accelerators, chorded keystrokes • Not supported by onscreen keyboards • Can still apply to tactile keyboards connected to device
Results • Provide adjustment for pointer speed, direction, and acceleration • When using a finger or stylus, will generally be inapplicable • Windows tablet includes a trackpad • May be other mouse-like assistive technologies
Results • Present user notification using consistent technologies • iOS uses a lot of cross-application notifications • Provide alternatives to simultaneous pointer operations • Expand to include gestures • Guidelines on windows • Expand to switching between applications
Conclusion and Recommendation • Need to finish analyzing all four standards and compile final report • Going to also look for further resources on accessibility requirements in touch devices • May require further analysis by someone more familiar in accessibility requirements or touch devices. • However, this work should be usable for an international standard