DevSecOps is an organizational software engineering culture and practice that aims at unifying software development (Dev), security (Sec), and operations (Ops). The main characteristic of DevSecOps is to improve customer outcomes and mission value by automating, monitoring, and applying security at all phases of the software lifecycle: plan, develop, build, test, release, deliver, deploy, operate, and monitor. Practicing DevSecOps provides demonstrable quality and security improvements over the traditional software lifecycle, which can be measured with these metrics: