Reliable, measurable data is required to automate testing, commits, and releases. To establish best practices, organizations can start with the project Google's DevOps Research and Assessment (DORA) team established known as “The Four Keys”, in which they define the four basic metrics that indicate the performance of a DevOps team: Deployment frequency; Lead time for changes; Change failure rate; Mean time to restore service (MTTR). Beyond DORA there are additional important metrics to track: Defect escape rate; Mean time to detect (MTTD); Percentage of code covered by automated testing; Application availability; Application usage and traffic