Following a DevSecOps maturity model: 
DevSecOps is in many ways another level of DevOps maturity for an enterprise. Executive management and other stakeholders understand the concept of a maturity model, making it a helpful way to explain the value of this shift. Following a maturity model also helps you tell a story that includes the people, process, and technology changes that come with a DevOps-to-DevSecOps transformation.
Here are four typical levels of DevSecOps maturity:
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