Just the details about what tool is used to document and drive the management of project progress within subtopics of a project. There are many tools like notepad that can be used in a single user environment to drive the creation of documentation. A much better approach is to have a continuous share and critique of design decisions within a project by using a team or online for a multitude of team members. Like in any human group endeavor one needs to make sure to silence the boastful and encourage the thoughtful to such a group execise.