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Usability and mobile devices


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Usability and mobile devices

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Usability and mobile devices

  1. 1. Usability andMobile DevicesPrepared by:Mohammed Fahel21012195
  2. 2. Mobile Usability• Mobile applications are important for providing users with an alternate means of accessing your web page, as well as keeping connected anywhere and at any time.
  3. 3. Impact of Low Resolution recommendations for mobile interfaces: • Minimize the amount of scrolling required to find information • Include more search options
  4. 4. Impact of Download Speedimplementing a tactile feedbackmechanism to notify users if thetask is expected to take more thanfour seconds.The feedback would allow users todirect their attention back to theenvironment rather frequentlychecking the screen status. Thisshould reduce the amount ofneeded gazes and increase usersafety.
  5. 5. Impact of Limited Screen Size Horton’s changes include:• Separate HTML mark-up language from content information using CSS• Use a consistent, uncluttered page design• Limit the amount of text used for non-semantic purposes• Arrange information in an inverted pyramid styles (from most to least important)
  6. 6. Screen Readers for MobileDevices• The software converts normal Web pages into a mobile friendly format. Borodin, et al (2007) described software (CMo) that analyzes the semantic content of each requested page and displays it in order of predicted importance to the user question.• www.
  7. 7. RSS Feeds• Garofalakis and Stefanis (2007) described a system that takes advantage of the existing formatting of content into RSS feeds. The authors used an algorithm that takes content formatted as RSS and adapts it to the mobile screen.• Garofalakis and Stefanis asked participants to locate a Web news article within three minutes and compared their performance to the existing mobile browser. Results showed improved success rates on the search task with the new system as well as positive useful ratings by participants.
  8. 8. Mobile Usability Updatethree categories of mobile phones: • Feature phones: primitive handsets with tiny screens and very limited keypads that are suited mainly for dialing phone numbers. • Smartphones: phones with midsized screens and full A–Z keypads. • Touch phones: devices with touch-sensitive screens that cover almost the entire front of the phone.Mobile User Experience Improving Slowly• Mobile site success rate: 64%• Full site success rate: 58%
  9. 9. user testing• design a separate mobile site• horizontal swiping• links from the full site to the mobile site• Apps Beat Sites• We measured a success rate of 76% when people used mobile apps, which is much higher than the 64% recorded for mobile-specific websites.• The fat-finger syndrome will be with us for years to come.• limit the number of features
  10. 10. Thank you