DevOps is an approach to software development that centers on three pillars—organizational culture, process, and technology and tools. All three are geared toward helping development and IT operations teams work collaboratively to build, test, and release software in a faster, more agile, and more iterative manner than traditional software development processes.
According to The DevOps Handbook, “In the DevOps ideal, developers receive fast, constant feedback on their work, which enables them to quickly and independently implement, integrate, and validate their code, and have the code deployed into the production environment.”
In simple terms, DevOps is about removing the barriers between two traditionally siloed teams. In a DevOps model, development and operations teams work together across the entire software application life cycle, from development and testing through deployment and operations.