Slides in this set
Human Computer Interaction
· The design, evaluation and
implementation of interactive computer
· The improvement of human computer
interaction is important as it allows the
users to work more efficiently and more
· Easy of use and navigation can increase
job satisfaction and reduce stress.…read more
· Computers used in the workplace:
Ergonomics: the design and functionality of the
Lighting: use of lighting to avoid glare, shades
on windows etc.
Noise: from printers, fans, photocopiers.
Temperature: heat from machinery, air-
Furniture: seating, keyboards, table height,
Environmental conditions: electricity savings
· Careful design of programs by software
designers, an understanding of how humans
receive, process and store information can be
used to design effective user-friendly interactive
· To more complex a program appears doesn't
always mean that it has many features, it could
have poor human interaction.
· Manuals need to be written sympathetically to
the users skills without any assumptions being
made to their skills level.…read more
The eye is less sensitive to blue light than red or
green so important information should not be
displayed in blue.
Many people are colour blind so reds and greens may
Mainly used for warning sounds, and distinctive
sounds are used for different functions.
Important in keyboard and mouse design.
Motor skills in pointing and clicking, enlarge targets /
· Designs to assist:
· Short term memory: used to remember data
entries when keying in, i.e. a long string of
numbers should be designed into smaller
· Long term memory: storage of information, from
facts and experience, limitless capacity, slower
access time, and harder to forget.
· Contradicting images: icons should display an
image we associate with the command, i.e.
printer image for printing, or floppy disk for
saving, red colour for stop.…read more