The document discusses continuous integration using Jenkins and Git. Continuous integration involves integrating code changes frequently from developers on a project to avoid integration problems late in a project. Jenkins is a free and open source continuous integration server that can be used with version control systems like Git to automatically build code, run tests, and generate reports each time changes are committed to the repository. Setting up continuous integration involves installing Jenkins, configuring a Git repository, and configuring Jenkins to clone the repository, build the code, run tests, and generate reports on each change notification from Git.