A software metric is a measure of some property of a piece of software or its specifications.
A metric is a quantitative measure of the degree to which a system, system component, or process possesses a given attribute.
A quality metric is a quantitative measurement of the degree to which an item possesses a given quality attribute.
Metrics are the most important responsibility of the Test Team. Metrics allow for deeper understanding of the performance of the application and its behaviour. The fine tuning of the application can be enhanced only with metrics. In a typical QA process, there are many metrics which provide information.
The following can be regarded as the fundamental metric:
• Functional or Test Coverage Metrics.
• Software Release Metrics.
• Software Maturity Metrics.
• Reliability Metrics.
– Mean Time To First Failure (MTTFF).
– Mean Time Between Failures (MTBF).
– Mean Time To Repair (MTTR).
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