SYSTEMS DEVELOPMENT ANALYSIS
SYSTEMS DEVELOPMENT LIFE CYCLES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Pilot
|
|
|
Direct
|
|
|
Parallel
|
|
|
None of the above
|
Detailed explanation-1: -A disadvantage of pilot conversion is: it requires a considerable amount of time before the system is installed at all locations.
Detailed explanation-2: -Direct conversion, where the new system is turned on and the old system is immediately turned off, is the simplest and most straightforward method, but it is also the most risky because any problems with the new system may seriously disrupt the organization. 16.
Detailed explanation-3: -A parallel installation is normally the most costly because of the excess expenses associated with running two systems at once.
Detailed explanation-4: –Whole system conversion is most risky, especially if the system is large and complex, but completes the conversion in the shortest amount of time. Modular conversion reduces risk somewhat because the system is implemented gradually. It adds cost and time to the process, however.