The graduation project is the finalizing subject of the entire study at the HR. Students are allowed to propose projects and together with their coaching teacher they will decide. The first step after this decision is the creation of the project plan. All knowledge and templates can be used.
Before you start all this make sure that your SLC has given you as an individual formal permission to start your graduation. This permission has to be part of the entire project file at final delivery and has to be shown to the coaching teacher before you start the project as well.