| Enterprise healthcare applications must address new regulatory requirements without increasing safety-risk exposure. A practitioner review of recent DDD literature shows that Domain-Driven Design offers a compelling approach for building adaptive and interoperable enterprise systems in a safe and practical manner. However, DDD must be complemented by an action-oriented methodological framework that addresses governance and change-management implications. Alignment with HIPAA and patient safety is integrated at the domain-design stage, resulting in a strategy for defining, implementing, and monitoring processes across patient-care, administrative, and operational domains. The Domain-Driven Design (DDD) methodology provides a pragmatic and formal approach to designing and implementing complex enterprise business solutions. DDD enables the construction of business systems that are adaptive, interoperable, risk aware, and able to respond effectively to external challenges. Regulatory compliance and audit requirements are addressed through adequate choice of patterns, monitoring, and testing. Together, the holistic methodology and the DDD support an approach that can help organizations meet these twin demands in a more coherent and manageable manner.