DevOps is a framework that enhances application development and speeds up software releases by promoting collaboration between development (dev) and IT operations (ops) teams throughout the software lifecycle. It aims to increase customer satisfaction and drive innovation by facilitating faster product updates and problem resolution while ensuring quality and security. Common methodologies used in DevOps include Scrum, Kanban, and Agile, supported by a variety of tools that automate and streamline the software delivery process.