1372304
Description
Mind Map by Abdul Abdillahi, updated more than 1 year ago
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Created by Abdul Abdillahi
about 10 years ago
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Changeover Techniques
- Parallel Changeover
- What is it: In a
Parallel Changeover
the new system runs
simultaneously with
the old system for a
given period of time.
- Advantages
- Carries Low Risk
- Can be reverted back to
the original system
- Carries Low Risk
- Disadvantages
- High Costs
- Time Consuming
- High Costs
- What is it: In a
Parallel Changeover
the new system runs
simultaneously with
the old system for a
given period of time.
- Direct Changeover
- What is it: In a
direct changeover,
the entire system is
replaced in an
instant.
- Disadvantages
- Most Risk
- Old system gone
as soon as new
system is
implemented
- Most Risk
- Advantages
- Works best where
a systems failure
will not leave a
disaster for the
company
- Works best where
a systems failure
will not leave a
disaster for the
company
- What is it: In a
direct changeover,
the entire system is
replaced in an
instant.
- Phased Changeover
- What is it: In a
phased
changeover, the
new system is
implemented one
stage at a time
- Advantages
- Low Costs
- Isolated Errors
- Trains Staff
- Low Costs
- Disadvantages
- Time Consuming due
to implementation of
different phases
- Time Consuming due
to implementation of
different phases
- What is it: In a
phased
changeover, the
new system is
implemented one
stage at a time
- Pilot Changeover
- What is it: In a pilot
changeover, the new
system is tried out at a
test site before
launching it
company-wide
- Advantages
- Cost Effective
- Trains Staff
- Cost Effective
- Disadvantages
- For the office / department
doing the pilot, there is no
back-up system if things go
wrong
- For the office / department
doing the pilot, there is no
back-up system if things go
wrong
- What is it: In a pilot
changeover, the new
system is tried out at a
test site before
launching it
company-wide
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