The process of monitoring evaluating, and modifying a system as needed is referred to as systems:
Answer(s): C
Systems maintenance must be undertaken by systems analysts and applications programmers continually throughout the life of a system. Maintenance is the redesign of the system and programs to meet new needs or to correct design flaws. These changes should be part of a regular program of preventive maintenance.
Change control typically includes procedures for separate libraries for production programs and for test versions of programs. The reason for this practice is to:
Answer(s): B
Separating production and test versions of programs facilitates restricting access to production programs to the individuals, such as computer operators, who need access. The effect is to separate the incompatible functions of operators and programmers.
A company often revises its production processes. The changes may entail revisions to processing programs. Ensuring that changes have a minimal impact on processing and result in minimal risk to the system is a function of:
Change control is the process of authorizing, developing, testing, and installing coded II changes so as to minimize the impact on processing and the risk to the system.
Minimizing the likelihood of unauthorized editing of production programs, job control language, and operating system software best be accomplished by:
Program change control includes 1) maintaining records of change authorizations, code changes, and test results, 2) adhering to a systems development methodology including documentation); 3) authorizing changeovers of subsidiary and headquarters' interfaces; and 4) restricting access to authorized source and executable codes.
A control for ensuring that the source code and the executable code for a program match is:
Answer(s): D
Recompiling source code into the production load library ensures that the source and executable codes match because the executable code is created from the source code.
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