HKSM
Quality Metrics
A defined project or product characteristic along with the method, units, and criteria used to quantify and assess it.
Key Points
- Specifies the attribute to evaluate, how it is measured, data source, units, frequency, and target or threshold.
- Derived from requirements, standards, and the quality management plan; guides quality assurance and control activities.
- Enables objective acceptance and monitoring through tools like control charts, check sheets, and dashboards.
- Must be clear, measurable, and traceable; vague metrics lead to inconsistent results and rework.
Example
Manufacturing project: "Scrap rate <= 2% per batch, measured at end-of-line inspection using the MES; reported weekly by the quality team."
PMP Example Question
Which of the following is the best example of a quality metric?
- A flowchart showing the steps of the inspection process
- Rework rate under 5% of total effort, measured monthly from timesheets
- A general statement that the organization will delight customers
- A list of risks prioritized as high, medium, or low
Correct Answer: B — Rework rate under 5% of total effort, measured monthly from timesheets
Explanation: Option B defines an attribute, the method of measurement, units, and a target threshold, which is what a quality metric requires.
