Topic 9- HCI

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What is HCI?
Human Computer Interface
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What are the methods of HCI?
Command Line Interface, Graphical User Interface (GUI), Touch Sensitive Screen, Bio-metric Device, Speech Recognition System, Natural Language Interface
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Where can a Command Line Interface be used?
Expert using it to find information on network configuration / write small batch.
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Where can a GUI be used?
For a primary school child using a maths program. Setting up a profile on a games console Customising a desktop/ application.
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Where can a Touch Sensitive Screens be used?
In a museum allow customers or children to gather information. Mobile phones to dial.
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Where can a Bio-metric Devices be used?
Retina scan / iris recognition to gain access to room Thumbprints to take out a library. Facial recognition at airports for identity purposes.
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Where can a Speech Recognition Systems be used?
Voice control in car navigation systems – e.g. to plan route. Security systems e.g. to allow entry. Mobile phones – e.g. to dial the phone number of a friend. Doctors can use them to dictate notes directly into a computer.
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Where can a Natural Language Interface be used?
Giving instruction, Asking question such as in expert systems.
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What are the advantages to a Command Line Interface?
Fast to run. Needs very little overheads (memory / processor)
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What are the disadvantages to Command Line Interface?
Need to know the commands a lot of typing
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What are the benefits to a GUI?
Fun to use. Colourful. Easier to customize. making it as intuitive for a user as possible.
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What the drawbacks to a GUI system?
Needs a powerful process. Can run slowly.
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What are the benefits to a Touch Sensitive Screen?
Saves having to type. Quicker to enter information/fixed list of options. Easier for disabled people. No need for mouse and keyboard.
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What are negatives of a Touch Sensitive Screen?
Might not have all the options needed. Dirty/damaged screen/ wet fingers. Screen requires re calibration.
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What are the advantages to a Biometric device?
Individual. Difficult to copy. Better security, Accuracy. Can lose smart card - not thumb print.
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What are the advantages to a Speech Recognition Software?
Quicker than typing. Allows people to enter text directly into a computer without using a keyboard. Can perform complicated tasks by dictation. Can empower disabled. Safer when driving as hands free doesn’t distract processing software.
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What are the drawbacks to a Speech recognition Software?
Have to train computer to recognise voice which takes a long time. Delays in getting commands recognised. Rural accents lead to misunderstanding of commands. Similar sounding words or commands. Background noise. Security as people can hear password.
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Other cards in this set

Card 2

Front

What are the methods of HCI?

Back

Command Line Interface, Graphical User Interface (GUI), Touch Sensitive Screen, Bio-metric Device, Speech Recognition System, Natural Language Interface

Card 3

Front

Where can a Command Line Interface be used?

Back

Preview of the front of card 3

Card 4

Front

Where can a GUI be used?

Back

Preview of the front of card 4

Card 5

Front

Where can a Touch Sensitive Screens be used?

Back

Preview of the front of card 5
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