Explore domain-driven design and rapid model refinement in this 49-minute conference talk from GeeCON 2023. Discover how to address evolving client requirements and avoid costly system rewrites by focusing on domain experiments. Learn to combine example mapping with business-oriented Test-Driven Development (TDD) to challenge upfront decisions and refine your domain model through examples. Gain insights into finding the right conceptual contours and iteratively improving your system without starting from scratch. Understand how this approach can help you adapt to changing needs and create more accurate, flexible domain models throughout your project's lifecycle.