In the previous article, I discussed the most often overlooked aspect of Domain-Driven Design: the strategic side. When it comes to software development, teams tend to rush toward code, believing that implementation will clarify the domain. History shows the opposite — building without understanding the underlying reason or direction often leads to systems that are technically correct but conceptually wrong. As the old Latin root of strategy (strategos, “the art of the general”) suggests, the plan must precede the movement.
Now that we’ve explored the “why” and “what,” it’s time to turn to the “how.” Tactical DDD represents this next step — the process of transforming a well-understood domain into expressive, maintainable code. While strategic design defines boundaries and fosters a shared understanding, tactical design brings those ideas to life within each bounded context.