Understanding resiliency scores

This section describes how AWS Resilience Hub quantifies application readiness from different disruption scenarios.

AWS Resilience Hub provides resiliency score that represents the resiliency posture of the application. This score reflects how closely the application follows our recommendations for meeting the application's resiliency policy, alarms, standard operating procedures (SOPs), and tests. Based on the type of resources the application uses, AWS Resilience Hub recommends alarms, SOPs, and a set of tests for each disruption type.

The top resiliency score is 100 points. To achieve the best possible score or the top score, you must implement all the recommended alarms, SOPs, and tests in your application. For example, AWS Resilience Hub recommends one test with one alarm and one SOP. The test runs and fires the alarm and initiates the associated SOP. If they perform successfully and if the application meets the resiliency policy, it receives a resiliency score close to or equal to 100 points.

After running first assessment, AWS Resilience Hub provides an option to exclude operational recommendations from your application. To understand the impact of the excluded recommendations on the resiliency score, you must run a new assessment. However, you can always include the excluded recommendations in your application and run a new assessment. For more information about including and excluding alarm, SOP, and test recommendations, see Including or excluding operational recommendations.