The emphasis of DDD is to invest our efforts in what matters most to the business. We don’t over-model. We focus on the Core Domain. Other models exist to support the Core Domain and are important, too. Yet the supporting models may not be given the priority and effort of the Core Domain.
When our focus is on what distinguishes our business from all others, our mission is well understood and we have the parameters we need to keep on track. We will deliver exactly what is needed to achieve competitive advantage.