To deliver software increments on a predictable basis, it is best to embrace the DevOps philosophy. In short, DevOps means breaking the traditional model by encouraging communication between business, software development, software operations, quality assurance, and clients. DevSecOps is a form of DevOps that also emphasizes the need to design with security in mind at each step of the process.
This means that the application you are building has observability built-in from the beginning, leverages CI/CD pipelines, and is scanned for vulnerabilities on a regular basis. DevSecOps gives developers a voice in the design of the underlying infrastructure, and it gives operations experts a voice in the design of the software packages that make up the application. Since every increment represents a working system (albeit not fully functional), security audits are performed regularly and therefore take less time than normal. This results in faster and more secure releases and allows...