You can create health rules to monitor the parameters that represent the normal or expected operations for your service endpoints. The parameters rely on metric values, for example, the average response time. When the performance of a service endpoint violates the conditions set by a health rule, a health rule is violated. Alerts notify you of any violation and initiate remediation actions to mitigate the violation event. It is important that you configure alerts appropriately to ensure that you do not miss any alerts or receive false alerts. 'Alert Sensitivity Tuning' (AST) helps you configure alerts with appropriate sensitivity. AST provides historical data for the metric or the baseline being configured, and helps you visualize the impact of the alerting configuration. To create a health rule to monitor service endpoint parameters and fine-tune the sensitivity of the health rule using AST, see Create a Health Rule and Fine-tune Metric Evaluation.