Section: Information System Acquisition, Development and Implementation
Explanation/Reference:
In the abrupt changeover approach the newer system is changed over from the older system on a cutoff
date and time, and the older system is discontinued once changeover to the new system takes place.
Changeover refers to an approach to shift users from using the application from the existing (old) system to
the replacing (new) system.
Changeover to newer system involves four major steps or activities
Conversion of files and programs; test running on test bed
Installation of new hardware, operating system, application system and the migrated data.
Training employees or user in groups
Scheduling operations and test running for go-live or changeover
Some of the risk areas related to changeover includes:
Asset safeguarding
Data integrity
System effectiveness
Change management challenges
Duplicate or missing records
The following were incorrect answers:
Parallel changeover - This technique includes running the old system, then running both the old and new
systems in parallel and finally full changing over to the new system after gaining confidence in the working
of new system.
Phased Changeover -In this approach the older system is broken into deliverables modules. Initially, the
first module of older system is phased out using the first module of a new system. Then, the second
module of the newer system is phased out, using the second module of the newer system and so forth until
reaching the last module.
Pilot changeover - Not a valid changeover type.
The following reference(s) were/was used to create this question:
CISA review manual 2014 Page number 172

Explanation/Reference:
Explanation:
Fourth-generation languages (4GLs) are most appropriate for designing the application's graphical user interface (GUI). They are inappropriate for designing any intensive data-calculation procedures.

Section: Protection of Information Assets
Explanation:
IS auditors should review access-control lists (ACL) to determine user permissions that have been granted
for a particular resource.