There are several phases of a Application . It does not end with developing the application and deploying it on production servers. Other most important part, any problem surfaces after the deployment, how quickly the problem can be be resolved and according to severity of the issue (if required) a patch can be deployed on production. Apart from this, we also want to get notified on all the issues occurred on production and accordingly analyze and take care in future releases. We can also log other details that could be useful to check the status of Application.