DevOps is an essential link in software development that ensures continuous delivery with agility. It promotes an ecosystem where development teams, infrastructure teams, and quality assurance teams closely collaborate. For enterprises adopting DevOps, quality assurance teams must evolve their role from testing to quality engineering. This involves collaborating throughout the development lifecycle, automating testing and other processes, and providing continuous feedback. Key success factors for DevOps include leadership alignment, automation, identifying opportunities for efficiency gains, automated infrastructure management, and post-production monitoring.