Which design principle corresponds to the Reliability pillar in the AWS Well-Architected Framework?

The Reliability pillar of the AWS Well-Architected Framework focuses on ensuring a workload performs its intended function correctly and consistently when expected. Testing recovery procedures directly contributes to reliability by verifying that your system can recover from failures and continue operating. This includes regularly testing backups, disaster recovery plans, and failover mechanisms to ensure they work as designed. "Experiment more often" relates to the Performance Efficiency pillar, encouraging continuous improvement through experimentation. "Go global in minutes" aligns with the Performance Efficiency and Cost Optimization pillars, leveraging AWS's global infrastructure for rapid deployment. "Analyze and attribute to expenditure" is a key aspect of the Cost Optimization pillar, focusing on understanding and controlling costs.