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Prototyping and RAD
Prototyping and RAD
Prototyping and RAD are two alternatives to the systems
development life cycle approach.
- With prototyping, a model can be used to simulate
an actual system before it is installed.
- With RAD, time to design a new system could be
shortened.
Prototyping means to build a model that can be modified
before an actual system is installed
- It can be used if there is no time or opportunity to
complete a systems life cycle.
- It is a fast alternative to the six phase process
of traditional systems analysis and design.
- It can be used to devise a model of a new system
for users to try out.
- It will allow users to find out quickly how a
change in the system can help or hinder their work.
- Relying on Prototyping alone can be risky
because it could lead to changes being made without costs or other matters
being considered.
RAD stands for rapid applications development.
- It involves the use of
- Powerful development software
- Small, specialized teams
- Highly trained personnel
- Resulting time-and-billing system would likely cost
more.
- The quality of completed system and development time
would likely be better.
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