The DevOps methodology promotes collaboration between development and operations teams to streamline software development processes. A DevOps pipeline is a series of automated processes that enable continuous integration, testing deployment, and software delivery. Key concepts include continuous integration, continuous delivery, continuous deployment, continuous testing, and continuous operations. DevOps pipeline stages consist of planning, coding, building, testing, releasing, monitoring, and operating. Embracing collaboration, automation, CI/CD pipelines, and continuous improvement are best practices for building a successful DevOps pipeline.