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a) Verification
This refers to the process of checking that data has been correctly transcribed. It involves
comparing a second transcription with a first. An example is the process of checking
password changes.
Validation
This is an attempt to build into the computer program powers of judgement so that
incorrect items of data are detected and reported. An example is before inputting data in a
computer; checks are run to prevent any error from being carried forward.
b) (i) Characteristics of a good coding
system: o It must be brief.
o It must be unambiguous/distinct.
o It must have capacity to expand/growth.
o It must be simple and easy to remember.
o It should not be bulky.
o Should be unique.
(ii) Commonly used coding
systems: o Serial coding.
o Block/group coding.
o Faceted coding.
o Mnemonic coding.
o Hierarchical coding.
c) Areas that performance reviews should cover:
o The staffing needs and whether they are more or less anticipated.
o Any delays in the processing and effects of such delays.
o Effectiveness of the inbuilt security procedures in the system.
o The error rates for input data.
o The output i.e. whether it is current, timely and distributed correctly to the relevant
users.
o Comparison of the actual system performance against the anticipated performance.
gregorymasila answered the question on February 15, 2018 at 17:16
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Date posted: February 15, 2018. Answers (1)
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In the conduct of duties, a professional information analyst/programmer might become
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Required:
(a) Briefly explain the following terms:
(i.) Corrective maintenance;
(ii.) Adaptive maintenance;
(iii.) Perfective maintenance.
(b) Briefly explain the meaning and purpose of a user group
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Required:
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Date posted: February 15, 2018. Answers (1)
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Computer systems which process financial data for a company should be audited to evaluate
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Required:
a) State five systems checks and controls that should be built in the system at the design
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b) Discuss the audit trail in computerized accounting information systems.
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Date posted: February 15, 2018. Answers (1)
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Date posted: February 15, 2018. Answers (1)
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(b) Describe four methods that would be used for fact finding during system investigation.
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Date posted: February 15, 2018. Answers (1)
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a. Outline the individual ethical issues implied when a person joins a professional
organization.
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Date posted: February 15, 2018. Answers (1)