A method and system for diagnosing a fault in a system. Operational state and configuration information is obtained from a plurality of components residing in a plurality of domains, the status and configuration information being based on a plurality of layers of a communication model. The operational state and configuration information are correlated and reformatted to create an end-to-end view of a network-based application; and a user interface configured to visualize the correlated and reformatted operational state and configuration information across the plurality of domains is generated, the user interface configured to present the visualized status and configuration information at each of the plurality of layers.