Which term describes the focus on continuous integration and continuous delivery in software development?

DevOps principles are focused on fostering a culture of collaboration between development and operations teams, with an emphasis on continuous integration (CI) and continuous delivery (CD). This approach aims to automate and streamline the software development lifecycle, enabling teams to deliver software more reliably and frequently.

In a DevOps environment, CI involves the practice of developers frequently merging their code changes into a central repository, which is then automatically tested to identify any integration issues early. This reduces the time spent tracking down bugs or issues after development. Continuous delivery complements this by ensuring that code changes are ready for deployment at any time, meaning that releases can be made systematically and with minimal risk.

In contrast, other methodologies such as Agile emphasize iterative development but do not explicitly focus on the integration and delivery aspects to the same extent as DevOps. The Waterfall model follows a linear and sequential approach to software development, which is at odds with the rapid deployment cycles of CI/CD. Prototype development is about creating preliminary versions of products for testing concepts and ideas, rather than focusing on integration and delivery processes.

Therefore, the term that best describes the focus on continuous integration and continuous delivery in the context of software development is DevOps principles.