1 00:00:00,150 --> 00:00:03,400 Now that you've written some of your own questions, consider the following 2 00:00:03,400 --> 00:00:07,120 three. Which is the most likely to be useful for determining the detailed 3 00:00:07,120 --> 00:00:11,730 requirements? Maybe, what OSes should it run on? Or maybe, how will the 4 00:00:11,730 --> 00:00:16,210 user specify input? Or finally, how many lines of code should it take?