Establish clear objectives for system
It is essential, when developing a multimedia system, to define who is the audience for
the system and its objectives from the useršs point of view. This can be achieved by
defining a series of typical scenarios of use for the system. These will help prioritise
the goals of the design, and should be the focus for evaluation. For example:
"The user wishes to find out the latest prices of equipment from the company via
the Web and either put in an order, request further information or speak to someone
personally."
"A school pupil is asked to collect information on eye colour and hair colour of
their classmates, put it into the system, and see if the two characteristics seem to
correlate".
Understand the audience
The audience and working environment for the product is full of variables. It is not
always possible to predict these or to control them. However the product can be designed
to work well under a range of probable conditions.
To understand the audience, the following aspects should be considered:
- Audience
- - Who are the target users?, What are their characteristics?
- Usage
- - Where will the product be used? Will it be viewed and controlled by a single person?
Will it be projected infront of a group? Will it be demonstarted close-up by one person to
one or more others? Used just once, occasionally or frequently?
- Environment
- - Will the environment be noisy enough to interfere with program sound?, Quiet just as
in a library or classroom?, Particularly bright or dark? Unpredictable (if computer
equipment is portable)?
- Equipment
- - What can be assumed about the kinds of equipment users have? The performance users'
computers can deliver?
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