The Art of Systems Architecting A Book by Mark W. Maier & Eberhardt Rechtin www.amazon.com Complete and consistent requirements systems
Three Perfect Tools An Article by Tim Bray www.tbray.org There is a particular joy in a product that just does what you need done, in about the way you expect or (thrillingly) better, and isn’t hard to figure out, and doesn’t change unnecessarily. Here are three to learn from. toolsperfectiondesign