Maven is an open-source build automation tool that focuses on builds and dependency management within Java projects, making it a popular choice for developers who need to manage complex dependencies. Maven simplifies the process of managing project structures, centralizing dependencies into a single file, and streamlining build functionality. On the other hand, Jenkins is an open-source CI/CD tool that automates the build, test, and deployment processes, allowing developers to work on features without manual intervention. Jenkins offers a wide range of plugins and integrations with various tools, including Git, Maven, and Amazon Elastic Compute Cloud (Amazon EC2), making it a versatile choice for teams. While both tools have their strengths and weaknesses, the choice between Maven and Jenkins ultimately depends on the specific needs of the project, such as dependency management or automation of build processes.