Most software doesn’t break because of syntax errors or flawed if-else logic.
It breaks because teams lose alignment with the business problem they’re supposed to solve. Systems become tangled with technical assumptions that age poorly. Features get implemented without proper design considerations. And over time, every new requirement creates more issues that keep piling up.
Often, this isn’t a tooling problem. It’s a modeling problem.
Domain-Driven Design (DDD) tries to tackle this problem head-on. At its core, DDD is a way of designing software that keeps the business domain, not the database schema or the latest framework, at the center of decision-making. It insists that engineers collaborate deeply with domain experts during the project lifecycle, not just to gather requirements once and vanish into Jira tickets. It gives teams the vocabulary, patterns, and boundaries to model complex systems without getting buried in accidental complexity.
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