DevOps is an operational philosophy that promotes better communication between development and operations as more elements of operations become programmable.
DevOps is philosophy, and it's invisible. But it is like the soul through our work, either development, operation, testing even marketing or business. There are no rules in DevOps, no definition in DevOps and no right or wrong in DevOps. You would do DevOps in your way, I do it in my way.
You would do DevOps in your way. I do it in my way.