Supportsoft Glossary

How Software Metrics Measure Performance and Quality

Software metrics are quantitative measurements, which indicate the quality, performance, maintainability, and productivity of software. They allow teams to measure their progress, uncover risks, and make rational decisions at every stage of the development lifecycle. The metrics might concentrate on code properties, such as complexity, coverage, or duplication, or on process indicators like sprint velocity, defect density, and lead time. 

On the other hand, operational metrics like uptime, response time, and error rates describe the system's behaviour in a real-world environment. Each metric gives a separate view, but they are most powerful when combined. The aim is not to accumulate data indiscriminately but to acquire guidance. Appropriate metrics point out where the work is lacking and confirm if the changes bring a significant result. Besides, they facilitate the openness between different teams by making the discussions based on shared facts rather than the personal feelings of the members. 

However, it is necessary to be cautious of metric overload or the use of metrics as punitive tools; if misused, they can distort behaviour and damage culture. When used wisely, metrics are an efficient tool to monitor quality, support the process of optimisation, and retain the sense of accountability in intricate software systems.