The failure rate is an example of which of the following?

A. Quality metrics
B. Process metrics
C. Quality checklists
D. Quality control measurements

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HINT: Note that failure rate is a product attribute.

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Answer and Explanation:
The correct answer is A.

Quality metrics are usually about a project or product attributes and used in both quality assurance and quality control to ensure the project meets the quality objectives such as on-time milestones, failure rate, or requirement stability. While quality control measurements and process metrics are about the process indicators, a quality checklist is a list used to verify that a set of steps has been performed.

Details for each option:

A. Quality metrics
Correct. Quality metrics are used to measure important attributes of the project and product with the predefined tolerance. Examples of quality metrics are tasks completed on time, requirement stability, the percentage of requirements covered by test plans, and the like.

B. Process metrics
Incorrect. Process metrics are defined to measure the quality and performance of a process, not a product. As the failure rate is about the product quality, it is not an example of process metrics.

C. Quality checklists
Incorrect. The failure rate is a metric, not a checklist.

D. Quality control measurements
Incorrect. Quality control measurements are the measurements of process metrics, not product metrics. Therefore, the failure rate is not included in quality control measurements.

Reference: A Guide to the Project Management Body of Knowledge, (PMBOK^® Guide) – Sixth Edition, Project Management Institute Inc., 2017, Page(s) 287