QuestionQ231

Chapter 4: Test Analysis and Design

A new web app is intended to deliver a rich user experience. As a functional tester, you have performed functional tests to confirm that, before the app is released, it operates correctly on several mobile devices, all listed as supported devices in the requirements specification. These tests took place in stable, isolated test environments in which you were the sole user interacting with the application. All tests passed; however, in some tests you noticed the following issue: only on some mobile devices, the response time for two web pages that contain images was extremely slow.

Based solely on the information provided, which of the following recommendations would you follow?

  • A You should open a defect report providing detailed information on which devices and by running which tests you observed the issue.
  • B The issue is related to performance efficiency, not functionality. Thus, as a functional tester, you should not open any defect report as all the functional tests passed.
  • C You should not open any defect report as the problem is most likely due to poor hardware equipment on the devices where you observed the issue.
  • D You should not open any defect report and inform the test manager that the devices on which you observed the issue should no longer be supported so that they will be removed from the requirements specification.
Explanation

Extremely slow page response is a performance-efficiency failure on devices that the requirements specify as supported. An observed failure should be documented in a defect report with the affected devices and the test conditions or steps that exposed it, even when the functional test results pass. ISTQB identifies performance efficiency as a non-functional quality characteristic and expects testers to write clear defect reports.

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