With the development of cloud computing and automation tools, more and more companies are introducing CI/CD and Infrastructure as Code. In addition, an increasing number of companies and organizations want to adopt agile development methods and DevOps to achieve DX. On the other hand, however, there are many people who are not able to engage in DevOps for a variety of reasons. In this seminar, we will introduce the concept of DevOps, explain the technologies supporting DevOps and their merits and demerits, and provide a guide to introducing DevOps. Translated with www.DeepL.com/Translator (free version)