ITPEC IP April 2021 Question 51
Topic: Project Management
Among the following lists of descriptions A through D, which is the set that contains all appropriate descriptions concerning quality management in information systems?
A:Continuous initiatives according to the PDCA cycle are effective in improving quality.B:The more functions a system has, the higher the quality.C:The cost of preventing defects is generally less than the cost of correcting them when they are found.D:Quality can be increased through appropriate design and implementation.
Explanation
A, C and D — quality improves through PDCA, costs less to build in than to fix, and comes from sound design and implementation.
- •A: right. Plan, do, check and act repeated continuously is the standard way to improve quality.
- •B: wrong. Quality is how well the system meets its requirements and intended use. Extra functions add complexity and room for defects; they do not by themselves raise quality.
- •C: right. A defect prevented costs little; one found later must be traced back and fixed through design, code and tests, and the cost grows the later it is found.
- •D: right. Quality is built in by appropriate design and implementation, not added by testing at the end.
Answer (c)
Why not others:
- •(a) A, B, D — includes B, which equates quality with the number of functions, and leaves out C
- •(b) A, C — leaves out D, which is also correct
- •(d) C, D — leaves out A, the PDCA cycle
Key rule: Quality means fitness for the requirements, built in by design and prevention; the earlier a defect is prevented or found, the cheaper it is.
Project Management · AI-written, may contain errors
This question comes from an official ITPEC past paper. ITPEC Practice is an independent study tool and is not affiliated with ITPEC. See the official IP past-paper collection or Report an issue.