The words Metrics and Matrix cause confusion, as they sound similar. So, what’s the difference between them?
Metric is a measurement.
Product Quality Metrics describe the characteristics (i.e. Size, complexity, performance Quality level of the product). For example:
- Mean time to failure
- Defect density
- Customer Problems
- Customer Satisfaction
- Defect Removal Efficiency
Matrix is a data representation and data collection mechanism. Then we use collected data to derive metrics. For example:
- Requirements Traceability Matrix
- Functional Traceability Matrix
- Test Matrix