Both the old and the new system are operated until the project development team and end user management agree to switch completely over to the new system.
Parallel Conversion
Both the old and the new system are operated
until the project development team and end user management agree to switch
completely over to the new system.
Phased Conversion
Only parts of a new application or a few
departments, offices at a time are converted.
Pilot Conversion
Where one department serves as a test site.
Plunge/Direct Cutover
Use the system immediately, and totally abandon
the old system.