Well Architected help identify areas to adopt best practices to help operate better, in a more secure, reliable, performant, at a lower cost. This will help improve the architecture of the workload and provide best practices how to better operate and govern in the cloud. Well-Architected helps build secure, high-performing, resilient, and efficient infrastructure for workloads to implement scalable designs. Pillars:

• Operational Excellence – process improvement, monitoring, automating changes, responding to events, and defining standards to manage daily operations
• Security - confidentiality and integrity of data, managing user permissions, and establishing controls to detect security events Reliability – distributed system design, recovery planning, and adapting to changing requirements
• Performance Efficiency - selecting resource types and sizes optimized for workload requirements, monitoring performance, and maintaining efficiency as business needs evolve
• Cost - understanding spending over time and controlling fund allocation, selecting resources of the right type and quantity, and scaling to meet business needs without overspending
• Sustainability - shared responsibility model for sustainability, understanding impact, and maximizing utilization to minimize required resources and reduce downstream impacts