As the craft of Web design continues to evolve, we’re recognizing the need to develop thoughtful design systems, rather than creating simple collections of web pages.
Brad's discussion on Atomic design is an interesting one. There is real meat in here in how to break things down that I agree with.
Brad's work has spun off a few other projects that are interesting as well. Mainly, Pattern Lab.io. This is an interesting project that uses the mustache template language to assemble a UI Pattern library.