Back to Glossary Azure Well-Architected Framework A set of architectural principles and best-practice guidance from Microsoft for building reliable, secure, cost-efficient, operationally excellent, and high-performing workloads on Azure. Organized around five pillars; reliability, security, cost optimization, operational excellence, and performance efficiency. The framework provides actionable recommendations that help organizations evaluate trade-offs and continuously improve their cloud environments. A set of architectural principles and best-practice guidance from Microsoft for building reliable, secure, cost-efficient, operationally excellent, and high-performing workloads on Azure. Organized around five pillars; reliability, security, cost optimization, operational excellence, and performance efficiency. The framework provides actionable recommendations that help organizations evaluate trade-offs and continuously improve their cloud environments.