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Interactive Web Site Limitations

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Transcript

  • 1. Interactive Web Site Limitations Copyright ©2003 Deb Murphy
  • 2. Note
    • This lecture does not include information about the Americans with Disabilities Act
    • We will be covering that material during our next class meeting.
  • 3. Objectives
    • User Limitations
    • Hardware Limitations
    • Software Limitations
    • Network Limitations
    • Website Limitations
  • 4. User Limitations Novice Intermittent Expert Novice-Expert continuum of users
  • 5. User Limitations
    • What are some user limitations?
      • Newbie to Expert
        • Computer usage
        • Internet usage
        • Over and underestimating computer abilities
  • 6. User Limitations
    • What are some user limitations?
      • Cultural differences
        • Colors
        • Use of Emoticons
      • Lack of understanding of Internet Culture
        • E-mails in all cap letters is considered shouting except when getting email from a blind reader
        • Emoticons
  • 7. User Limitations
    • What are some user limitations?
      • Attention span
        • If the page does not load within seconds the person moves onto something else.
      • Digital divide
        • The person cannot afford Internet access and a computer.
  • 8. Hardware Limitations
    • How often do people replace their computers?
      • KSU’s refresh program is 3 years
      • People may keep home computers longer
    • Is the equipment too old?
      • Anyone have a 486? I have two – one running Linux and the other one Win98.
    • Is the hard drive too full to add any more software?
  • 9. Software Limitations
    • Use of obsolete software
      • MS Works
      • Word Perfect 5.1
    • Lack of understanding on how to use the computer’s software
      • Browser differences
      • Age of the browser
    • Use of non-standard software
      • Freeware from a download site
      • Warez from a download site
  • 10. Software Limitations
    • Browsers
      • Internet Explorer
      • Netscape
      • Mozilla
      • Opera
      • Amaya
      • Lynx
      • Neoplanet
      • Apple Safari
      • Konqueror
      • iCab
      • Ka Ko'okele
  • 11. Network Limitations
    • Dialup vs. cable or dsl access
      • Use of video
        • Downright terrible on a dialup connection
      • Use of audio
      • Creation of broadband web sites
        • http://highspeed.discovery.com/
  • 12. Network Limitations
    • Denial of service attacks
    • Viruses, worms, etc.
    • Limitations caused by software
      • Software may be limited by firewall.
    • Limitations caused by network administrator or local policies
      • Use of chat rooms for educational purposes may be limited because a port has been closed
      • Library funding example
  • 13. Network Limitations
    • Firewalls
      • Limits access to your network or computer
    • Proxy servers
      • Gathers websites that were recently visited then when the user ‘visits’ that sight again it’s actually a copy
    • Web Search Engines
      • Spider may chose the wrong subject to place the site under
      • Developer may be using meta commands to tell the spider what the subject is
  • 14. Website Limitations
    • Is the website too complex?
      • Difficult to navigate
        • A single menu level is better than many smaller menus
        • Navigation should let users know
          • Where they are
          • Where they are going
          • Where they have been
        • Where should navigation be located at?
      • Difficult to find information
        • Research as found that people will give up after 4-5 mouse clicks if they cannot find the information they are seeking
  • 15. Website Limitations
    • Website Maintenance
      • When was the web site created?
      • Has it been maintained?
      • Is the website obsolete?
    • Is the website created by a viable agency?
      • A website created by MoonStar does not hold the same validity as a site created for the National Football League
  • 16. Website Limitations
    • Legal considerations
      • napster
    • Font limitations
      • Is the font available on the users machines?
    • Graphic limitations
      • Too large
      • Difficult to view
    • Web hosting limitations
      • Web site size limitations
  • 17. Website Limitations
    • Poorly designed web sites
    • Does the website use too much bandwidth
      • Video
      • Audio
      • Flash
      • File size
      • Wireless
    • Security
  • 18. Website Limitations
    • Browser incompatibility
      • Site was created for only one browser
        • Example: Mac computer with Netscape 4.7 trying to access WebCT VISTA yesterday
  • 19. Conclusion
    • Web site interactivity may be limited by numerous factors
      • User
      • Hardware
      • Software
      • Network
      • Website design
  • 20. End