DevOps

If you consider DevOps to be the fundamental idea, SRE may be considered the prescriptive technique of implementing that philosophy - at least, that's how Google defines it.
DevOps is a rather new and growing method of app development. It is very similar to agile and is often confused with it.
Cloud Ops and Dev Ops are two distinct systems that have some overlapping zones. One of the fallacies of similar-sounding words is that the readers easily misunderstand these. Let’s try to tell them apart by listing out their functionalities.
DevOps is the key to unlocking enterprise agility in your company, and it can create a culture of cooperation instead of your staff merely handing tasks off to each other.