Find the cause of a problem
Suppose customers say checkout is slow. The team can look at telemetry: metrics show how often or how long things happen, logs record events, and traces follow a request through different services. Together, these clues may reveal that the payment service is causing the delay.
Use the clues well
Monitoring and alerts warn teams about problems they already track. Observability also helps them investigate unexpected problems. The clues need to show what customers experience without collecting unnecessary personal data.