can be pretty useful at the start of the project to identify the stakeholders and their kind of involvement
The mind map is a thinking method that simulates the way the brain works - radial rather than linear. Starting with your project as the starting point in the middle, you can identify the various aspects of the project which you can illustrate as radiating from the center- your project.
Then from each aspect will radiate other important things about that aspect such as activities and stakeholders.
Radiating again from each stakeholders are aspects that you feel are important to note or work with.
After you have completed all these, you can go through an analysis of the relationship between each item with the others. With this you can get a whole picture of what needs to be done.