Human Computer Interface

Human Computer Interface

1. GUI (WIMP)

   • Disadvantages
     • GUIs take up a much larger amount of hard disk space than other interfaces
     • They need significantly more memory (RAM) to run than other interface types
     • They use more processing power than other types of interface
     • They can be slow for experienced programmers to use. These people often find CLI interfaces faster to use
   • Windows Icons Menus Pointers
   • Advantages
     • This type of user interface is easy to use, especially for a beginner
     • It is easy to explore and find your way around the system using a WIMP/ GUI interface
     • You do not have to learn complicated commands
     • There are usually good help facilities provided with WIMP interfaces
       • Benefits of WYSIWYG
   • Geographical User Interfaces

2. Command Line

   • You have to code programme what you want to happen
   • Advantages
     • If the user knows the correct commands then this type of interface can be much faster than any other type of interface
     • This type of interface needs much less memory (RAM) in order to use compared to other types of user interfaces
     • A CLI does not require Windows to run
   • Disadvantages
     • For someone who has never used a CLI, it can be very confusing
     • Commands have to be typed precisely. If there is a spelling error the command will fail
     • If you mis-type an instruction, it is often necessary to start from scratch again

3. Menu Interface

   • Advantages
     • Extremely easy to use. Someone who has never seen the interface before can work out what to do
     • There are no commands to learn or remember
     • Step-by-step options are given so that the user doesn't have to remember anything
   • Disadvantages
     • A poorly designed menu interface may be slow to use
     • It can be irritating if there are too many menu screens to work through - users get annoyed or bored if it takes too long
     • You often can't go to the exact place you want right at the start. You have to work your way through the menu screens even if you know where you want to get to.

4. Speech and Sound

   • Advantages
     • Quick
     • Easy for poeple with disabilities
   • Disadvantages
     • Unreliable

5. Touch Sensitive

   • Advantages
     • Intuitive to use
     • You can see all of the options available
     • Less chance of theft
   • Disadvantages
     • Need to understand the language or the meaning of the icons
     • Only limited options can be offered
     • Can become scratched
     • Higher cost than a normal monitor

6. Biometrics

   • Fingerprints
   • Voice Pattern
   • Retina

Bilder und Dateien der Mindmap