DevOps is all about removing barriers to rapid, safe delivery of new experiences to your customers. Much of this revolves around automating error-prone, human-driven processes so that processes can be standardized, scaled, and varied programmatically. Some of the types of tools used in a DevOps-minded organization might include version control systems, automation servers, and configuration management systems. Many tools can be used across categories, with varying amounts of success. Some vendors offer products that claim to address all of these needs with one solution – most rarely deliver on that promise.
Source: Open Source