Why is traceability between safety requirements and test cases important?

It is required only for software, not for hardware

It ensures that every safety requirement is tested and that test results can be linked back to requirements

It allows testers to skip testing requirements that are hard to test

It is only needed for documentation purposes and has no practical benefit

During the development phase of a brake-by-wire system, a tester is asked to verify that the software correctly implements the safety requirement 'the system shall initiate braking within 100 ms of pedal input.' Which activity best fulfills this request?

Reviewing the system requirements to ensure the 100 ms value is consistent with the safety goal.

Updating the safety case to document that the braking time requirement has been verified.

Conducting a customer clinic to assess whether drivers find the braking response acceptable.

Executing a test case that measures the time from pedal input to braking activation and comparing it to the requirement.

A test team is joining a new project for an electric vehicle powertrain. The safety manager wants the testers to be integrated into the safety lifecycle from the start. Which action best demonstrates early integration?

Participating in safety requirement reviews and providing input on testability and potential failure modes.

Waiting until the system is fully implemented to start test planning.

Delegating all safety-related testing to an external supplier.

Focusing only on executing test cases and reporting results without engaging in other activities.

What is the primary difference between verification and validation in a safety context?

Verification is only for software; validation is only for hardware

Verification is done by developers; validation is done by testers

Verification is done after validation

Verification checks that the product meets specifications; validation checks that it meets stakeholder needs

After a safety-related defect is fixed, what should the tester do?

Close the defect report without any further testing

Only re-run the failed test, not any others

Delete the defect report to keep records clean

Re-run the failed test and related regression tests to confirm the fix

Certified Tester Automotive Software Tester

Domain 2Objective 5

Integration of the Tester in the Safety Lifecycle CT-AUT Practice Questions (Page 3)

Part of the Standards for the testing of E/E systems domain, which makes up ~44% of our current practice bank. ISTQB does not publish an official question count, but from its 60-minute exam (~25–40 total, ~11–18 in this domain), expect 1–2 from this objective — we provide 34 practice questions to prepare you well beyond it. (estimate)

34questions here

7free pages

8concepts

8 Concepts in This Objective

Role of tester in safety lifecycle
Safety lifecycle phases and testing activities
Tester involvement in safety requirements
Test planning aligned with safety standards
Verification and validation in safety context
Traceability of safety requirements to tests
Handling safety anomalies and defects
Documentation and reporting for safety audits

Questions 11–15

11foundation · easy
Why is traceability between safety requirements and test cases important?
Select an answer first
12application · medium
During the development phase of a brake-by-wire system, a tester is asked to verify that the software correctly implements the safety requirement 'the system shall initiate braking within 100 ms of pedal input.' Which activity best fulfills this request?
Select an answer first
13application · medium
A test team is joining a new project for an electric vehicle powertrain. The safety manager wants the testers to be integrated into the safety lifecycle from the start. Which action best demonstrates early integration?
Select an answer first
14foundation · easy
What is the primary difference between verification and validation in a safety context?
Select an answer first
15foundation · easy
After a safety-related defect is fixed, what should the tester do?
Select an answer first

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