What is System conversion methods?
In short
System conversion methods are ways to switch from an old system to a new one: direct (cutover) conversion all at once, parallel running of both systems, pilot conversion at one location first, and phased conversion module by module.
Key takeaways
- Parallel conversion is safest because results can be compared, but it is the most costly.
- Direct conversion is cheapest and riskiest.
- Data conversion must be checked for completeness and accuracy, for example with control totals.
Where it's tested
ISC: Systems Development & Change Management — study notes, a five-minute revision sheet and practice questions.
Practise: 3 questions
Question 1 of 3 · 0 answered
Which system conversion approach carries the highest risk?