How I schedule actions and tasksという記事より。
I use a program called Omni Outliner to brainstorm a project’s requirements when coming up with an estimate. I simply make a list of every element I can imagine will be required to get from point a to point b. Then, I go back and put a time estimate in a column next to each item. It’s a quick and easy way for me to put a dollar value on even the most complex projects.