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Business process change
3.6 Implementation methods
Systems implementation involves a number of activities including:
testing – realistic, contrived, volume and acceptance tests
system changeover.
Four methods of
system changeover
Direct: Parallel: Pilot: Phased:
appropriate Appropriate Appropriate appropriate
when there is when the when the when the
confidence in system has not system can be system can be
the new system been used operated in implemented in
or is not a elsewhere or it different distinct parts
critical is a critical geographical
business business regions
system system
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