Build better SLOs with RUM and synthetic SLIs

Effective Service Level Objectives (SLOs) require balancing Real User Monitoring (RUM) and synthetic data to accurately track user experience benchmarks beyond backend metrics. The article outlines signs for reconfiguring SLIs, such as shifting reliability goals or volatile burn rate alerts, while distinguishing that synthetic monitoring offers stability independent of traffic, whereas RUM provides continuous granular insights into actual user behavior. Teams should select their primary data source by weighing the need for consistent availability testing against the requirement for precise measurement of real-world performance conditions.