# Application configuration parameters AWS Resilience Hub provides an input mechanism to gather additional information about the resources associated with your applications. With this information, AWS Resilience Hub will gain a deeper understanding of your resources and provide better resiliency recommendations. The **Application configuration parameters** section lists all the configuration parameters of your cross-Region failover support for AWS Elastic Disaster Recovery. You can identify the configuration parameters by the following: + **Topic** – Indicates the area of your application that is configured. For example, failover configuration. + **Purpose** – Indicates the reason why AWS Resilience Hub requested the information. + **Parameter** – Indicates the details that are specific to the area of application, which AWS Resilience Hub will be using to provide recommendations for your application. Currently, this parameter uses a key-value of only one failover Region and one associated account.