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HUMAN COMPUTER INTERACTION (HCI) (User Interface (UI) (Emergence of the…
HUMAN COMPUTER INTERACTION
(HCI)
KEYBOARDS
QWERTY
Designed as a mechanical solution to sticking arms. Letters that regularly follow made as far apart as possible
DVORAK
Supposed to be more efficient and natural allowing for faster typing speeds
Match the technology to the person, not the person to the technology.
get the interface right as early as possible because it has a tendency to live on
Feedback loop
e.g. mouse
The user
User Interface
(UI)
Perception that this
IS
the system because a users view is limited to their experience with the UI
e.g. Dialing a number. Does not need to know or understand the underlying activities that connect the call
Input
Output
One size does not fit all
separability
allow a users model of a task to be separated from the builder or programmer's model
Emergence of the Interface
Graphical User Interface
(GUI)
1980's
Keyboard, mouse graphical interface
GUI
1 user per computer
hundreds of thousands UK users
1990's
Mosaic
was first graphical web browser
Human-computer interface
Millions of UK users
2000's
Three way interaction, using computers to interact with other people
Touchable interface
Gesture based interfaces
e.g. Nintendo Wii
Interaction design
Design
Improve the interaction between humans and computers by making the interface more usable and receptive
