SDLC is an acronym that means either Software Delivery Life Cycle or Systems Development Life Cycle. And it is a lie. A fiction. A total fabrication. Somebody made it up out of thin air many years ago and the idea was cemented deep into corporate bureaucracy.
Being a Scrum Master can be tough. You are accountable for helping organisations change the way they approach complex work. If you upset enough of the wrong people you may end up “changing” yourself out of a job.