Testing data entry
Normal test data: Entre the general data to test the validation
Live data: Entre the reliable data that they are actually going to use
Extreme test data: Entre the data with the maximum and minimum
Abnormal test data: Entre the data which is weird e.g. price $0.00
Implementation
Direct changeover: Shut down the old system and install the new system immediately
Parallel running: Run the old system and new system at the same time
Pilot running: Try the new system in one area of the organisation before the new systems is fully installed
Phased implementation:
a) Individual modules of the system are introduced one at a time. leaving older modules running until they are replaced
b) Some orders are processed on the new system and some orders process on the old system
Advantages and disadvantages about the four ways of the implementation
Direct changeover
Advantages
- available immediately/good for the people don’t have enough time
- not very expensive
Disadvantage
- it has risk that the new system might be fail and lose all the essential data
Parallel running
Advantages
- if something fails in the new system, there’s no risk of losing the data
- the people have time to learn how to use the new system
Disadvantage
- it’s expensive
Pilot running
Advantages
- if the new system fails, only the part of the company has an affect
- it’s cheaper than parallel running
Disadvantage
- more expensive than direct changeover
Phased implementation
Advantages
- able to solve the troubles if it has problems during the implementing
- less risks of losing the data
Disadvantage
- more expensive than direct changeover
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