List and describe FOUR strategies for conversion from an old system to a new system
Direct approach
User simply stops old system and starts using the new one
Parallel approach
Old and new system are operated side by side until the new system has shown it is reliable
Phased approach
Parts of a new system are phased in separately either at different times or all at one in groups.
Pilot approach
Entire system is tried out but only by some users.
