Chapter 1: Information systems as a topic of study
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examination marks achieved as a University of London student – is an
issue that may be considered from all four perspectives.
1. From an
information systems perspective, we need to ask:
Why are we storing this data?
What purpose or purposes does it serve?
What (and whose) information needs will it satisfy?
How will we know if these needs have been met?
2. From a
technology perspective, we may want to ask:
How
can this data be captured, stored, communicated and
displayed?
What devices might be used?
What are their relevant characteristics – reliability, cost, speed,
usability, and so on?
3. From a
systems development perspective, we need to consider:
How might we design and build such a system?
What constraints are there to consider in terms of legal issues
and the interests of the users and those whose data is stored and
processed?
Who is going to undertake the development
work and what tools or
techniques will they need to use?
What exact items of data are to be collected and stored?
How long will the development take, and what will it cost?
4. Finally, from a
real world, getting things done perspective, there
is the need to:
Establish and resource a project to construct a system to do the job
and deliver a working system within budget and on time.
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