I don’t much believe in traditional outlines, but I do believe in devising methods to keep track of the goings on in your novel. Here’s the link to what Rowling did. You’re going to have to copy and past since I can’t get it to link up within this post. And if that doesn’t work, google “JK Rowling plot” or visit openculture.com and it’s there, somewhere.

How J.K. Rowling Plotted Harry Potter with a Hand-Drawn Spreadsheet