Quick Answer
The answer is to verify that the system meets specified requirements. This is the most important objective of system testing because it validates the entire integrated system against the functional and technical specifications, ensuring every requirement is correctly implemented before user acceptance testing begins. On the CISA exam, this concept tests your understanding of the system development life cycle phases, where system testing is a formal, structured process distinct from unit or integration testing. A common trap is choosing user satisfaction or defect removal as the primary goal, but those are secondary outcomes; the core objective is requirement compliance. Remember the mnemonic “V-M-R” for the testing hierarchy: Verify requirements first, then Measure performance, then Remove defects.
This CISA practice question tests your understanding of information systems acquisition, development and implementation. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which of the following is the MOST important objective of system testing?
Verify that the system meets specified requirements
System testing checks the overall system against requirements.
Confirm that end users are satisfied
Why wrong: User satisfaction is the focus of UAT, not system testing.
Ensure the code is free of defects
Why wrong: Code defects are addressed at lower testing levels.
Validate system performance under load
Why wrong: Performance is only one part of requirements verification.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Verify that the system meets specified requirements
System testing is a formal, structured process that validates the entire integrated system against its specified requirements. The primary goal is to confirm that the system behaves as defined in the functional and technical specifications, ensuring that all requirements are correctly implemented before user acceptance testing. While user satisfaction and defect removal are important, they are secondary to verifying requirement compliance, which is the core objective of system testing.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Verify that the system meets specified requirements
Why this is correct
System testing checks the overall system against requirements.
Related concept
Read the scenario before looking for a memorised answer.
Confirm that end users are satisfied
Why it's wrong here
User satisfaction is the focus of UAT, not system testing.
Ensure the code is free of defects
Why it's wrong here
Code defects are addressed at lower testing levels.
Validate system performance under load
Why it's wrong here
Performance is only one part of requirements verification.
Common exam traps
The trap here is confusing the objective of system testing with that of user acceptance testing (UAT) or unit testing, leading candidates to select user satisfaction or defect-free code as the primary goal.
Detailed technical explanation
System testing operates at the integration level, often using black-box techniques where test cases are derived directly from requirements documents (e.g., IEEE 829 test documentation). It validates end-to-end workflows, data flow integrity, and interface contracts between modules, such as API response codes or database transaction consistency. A real-world scenario is testing an e-commerce checkout: system testing verifies that the order total calculation matches the specified business rules, even if the UI is not yet finalized.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the CISA exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
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FAQ
Information Systems Acquisition, Development and Implementation — This question tests Information Systems Acquisition, Development and Implementation — Read the scenario before looking for a memorised answer..
The correct answer is: Verify that the system meets specified requirements — System testing is a formal, structured process that validates the entire integrated system against its specified requirements. The primary goal is to confirm that the system behaves as defined in the functional and technical specifications, ensuring that all requirements are correctly implemented before user acceptance testing. While user satisfaction and defect removal are important, they are secondary to verifying requirement compliance, which is the core objective of system testing.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 25, 2026
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