DORA metrics

DORA metrics are four measures of software delivery and operational performance, originating from research by Google's DevOps Research and Assessment (DORA) team: deployment frequency, lead time for changes, change failure rate, and time to restore service, a measure closely related to mean time to resolve. Together they capture both how fast a team ships and how stable what it ships is.

The four metrics work in pairs by design: deployment frequency and lead time measure throughput, while change failure rate and restore time measure stability, so a team cannot look good on DORA metrics by optimizing speed alone while stability degrades, or vice versa. This differs from the broader SPACE framework, which was developed partly in response to DORA to capture developer experience and satisfaction, dimensions DORA's four throughput-and-stability metrics do not address.

DORA metrics matter because they give engineering organizations a small, research-backed set of numbers to benchmark delivery performance against industry cohorts, rather than relying on activity metrics like lines of code or commit counts, which correlate poorly with actual delivery outcomes. A common pitfall is optimizing the four metrics as individual targets, which can encourage gaming, such as splitting one large deploy into many trivial ones to inflate deployment frequency, without an accompanying improvement in real delivery performance.