Scroll to the bottom of this page and watch the lectures on conceptual design https://stellar.mit.edu/S/course/6/fa18/6.170/materials.html https://stellar.mit.e

Scroll to the bottom of this page and watch the lectures on conceptual design https://stellar.mit.edu/S/course/6/fa18/6.170/materials.html https://stellar.mit.edu/S/course/6/fa18/6.170/materials.html interesting analysis on why some software ideas fail on launch. He had a book as well but the lectures are better so posted them.