Meaning
Software metrics track the duration required for a code change to move from the initial commit to running in a production environment. Measuring deployment lead time provides a clear picture of the efficiency of the delivery pipeline. High performance teams aim to minimize this interval to increase the frequency of updates.
It stops at the moment the new feature or fix is available to the end user.
Velocity Metric
Fast feedback loops depend on a short duration between development and release. When deployment lead time is long, it delays the realization of value from new engineering efforts. The metric includes the time spent on automated testing, security scanning and manual approval steps.
Pipeline Efficiency
Bottlenecks in the delivery process become visible when each stage is timed. If the testing phase takes three days while the build takes ten minutes, the manual intervention is the primary target for automation. Streamlining these stages reduces the overhead of every release.
Release Readiness
Calling a system ready for production requires a demonstrated ability to deploy changes quickly and safely. A pilot result that shows a ten day lead time suggests the pipeline cannot support a high volume of production updates. The cost of calling a release early is the high risk of a failed deployment that cannot be rolled back rapidly.