ISTQB Certified Tester Foundation Level (CTFL 2018) — Question 45

Which of the following would achieve the HIGHEST level of testing independence for a project's system test level?

Answer options

• A. Training developers to design good tests for the test team to execute.
• B. Outsourcing test design and execution to a different company.
• C. Having the company's independent test team design and execute the tests.
• D. Minimising contact between testers and developers during test design to avoid bias.

Correct answer: B

Explanation

Outsourcing test design and execution to a different company (option B) provides the highest level of independence since the external team has no vested interest in the project. Options A and C involve the company's developers or internal teams, which may lead to biases. Option D, while reducing bias, does not achieve the same level of independence as outsourcing.