[subb]

From my experience, it's almost impossible to divide a whole software project into a hierarchical view like a mind map.

Take for example a simple website. What will be your first level? Server-side and Client-side? What about pages? Do you repeat every pages on each side because you have code on both? OK so maybe the first level is all the pages then? Now, do you repeat client-side and server-side work for each pages?