Well-Architected Review

The Operational Excellence pillar focuses on running and monitoring systems, and continually improving processes and procedures. Key topics include automating changes, responding to events, and defining standards to manage daily operations.

• Perform Operations as code
• Annotate documentation
• Make frequent, small and reversible changes
• Refine operations
• Anticipate failure

The Security pillar focuses on protecting information and systems. Key topics include confidentiality and integrity of data, managing user permissions, and establishing controls to detect security events. There are seven design principles for security in the cloud:

• Audit for traceability
• Apply security at all layers
• Automate security best practices
• Protect data in transit and at rest
• Keep people away from data
• Prepare for security events

The Reliability pillar focuses on workloads performing their intended functions and how to recover quickly from failure to meet demands. Key topics include distributed system design, recovery planning, and adapting to changing requirements.

• Test recovery procedures
• Automatically recover from failure
• Scale horizontally to increase system availability
• Stop Guessing capacity
• Manage change in automation

The Performance Efficiency pillar focuses on structured and streamlined allocation of IT and computing resources. Key topics include selecting resource types and sizes optimized for workload requirements, monitoring performance, and maintaining efficiency as business needs evolve.

• Democratize advances in technologies
• Go global in minutes
• Use serverless architectures

The Cost Optimization pillar focuses on avoiding unnecessary costs. Key topics include understanding spending over time and controlling fund allocation, selecting resources of the right type and quantity, and scaling to meet business needs without overspending. Implement cloud financial management

• Adopt consumption model
• Measure overall efficiency
• Analyse and attribute expenditure

The Sustainability pillar focuses on minimizing the environmental impacts of running cloud workloads. Key topics include a shared responsibility model for sustainability, understanding impact, and maximizing utilization to minimize required resources and reduce downstream impacts.

• Understand your impact
• Establish sustainability goals
• maximize utilisation
• Use managed services
• Reduce the downstream impact