Human Computer Interfaces

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  • Created by: NTipper99
  • Created on: 22-05-17 12:08
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  • Good Human Computer Interfaces
    • Voice Interfaces
      • Use
        • Blind People
          • Allows them to navigate around the interface even though they cannot see it
      • Advantages
        • Large range of access as more people will be able to use it
        • More efficient as instead of looking and searching for the application or software you can just say where you want to go
      • Disadvantages
        • Less Security = Can record someones voice and play it = access stuff they shouldn't = breaking in = taking advantage
        • Unusable if person has cold as voice no longer sounds the same as before
    • Touch Sensitive Screens
      • Use
        • Mcdonalds / Fast Food Resturant Self-Service
          • People Order instead of going to the tills
      • Advantages
        • Frees Up Staff = Do other Jobs/Don't have to employ as many staff
        • More efficient = you know what you want so won't take as long to find it whereas staff have to have you say it 1 at a time
      • Disadvantages
        • Wet Fingers = Screen doesn't work = Screen doesn't work = Delays in ordering process
        • Screen can be easily broken = delays in ordering process as staff have to serve more people whilst they wait for the screen to be repaired
    • Biometrics
      • Disadvantages
        • More expensive to put in place + keep up to date + maintain
        • Wet Fingers = Damaged scanner = Doesn't work for the people after them
        • Has a belief that it is dangerous + that information is not needed in a school = parents don't allow their kids to have it done + go to that school
      • Uses
        • School Login System
          • Makes signing in and out quicker = longer lesson + teaching time
      • Advantages
        • Much more secure as can't/much harder to steal and use someones finger print especially if its in a school situation like my use
        • Saves time in lesson = it will take a couple of seconds for each kid to login as they walk through the door whereas register takes couple of minutes to check each kid is here or not
    • Retinal Scanning
      • Advantages
        • Much more secure = can't/ harder to steal and use someones retinal scan
        • Quicker to login = only takes a couple of seconds to scan then its the next person whereas at reception they have to search your name and make sure its the right person
      • Use
        • Hospital / Doctors Sign in
          • Quicker + more efficient way of signing in instead of queuing in reception
      • Disadvantages
        • Technology is more expensive to buy, implement and maintain
        • If scanner is broken no one can use it until it is fixed seriously delaying login

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