1. Write placeholder output, the equivalent of a Hello World for the task. 2. Start parameterizing parts of the program to generate the output, so that more an

1. Write placeholder output, the equivalent of a Hello World for the task. 2. Start parameterizing parts of the program to generate the output, so that more and more of the output comes from a few source variables. 3. Eventually you want a user interface on this and have it load from disk instead of recompiling...and so you end up with a complete program. You generally don't get there just by concentrating really hard on the architecture. You architect a bit and then try things to get empiric feedback.