How to Use DDD to Build a Domain-Driven Architecture

I was at Okta for a number of years and then I got an opportunity to kind of launch out and do my own thing with a friend of mine. We started a company called Cobbler and what Cobbler does essentially is it's kind of doing for business budget management, like mint.com did for your personal budget manager. It's aggregating a bunch of data, helping you do easy analysis on that, helping you plan and then track how you're actually doing against that plan over time. What was really important for me as I was coming into looking at building something from scratch for the first time? The architecture and design was either very weak or non-existent at the beginning or