How do you plan your CI applications?

[eluser]Dam1an[/eluser]
If its a small/medium project, I don't generally do that much planning
Just a high level overview (1 or 2 paragraphs to sum up all the functionality)
Then make a list of the basic sections (controllers) and what functionality that section needs, which transkates roughly to functions... I then plan the UI, do the code and DB and then move on
This whole process is ongoing, instead of all upfront

I'm currentlyl doing my first big scale CI project, and its my 3rd year project at Uni (If you have any ideas for a PMS, submit them in my sig) so I'm having to do a lot more planning then I'd do on my own