Abstract: A system and method for debugging system solutions under design which cooperates with a solution design platform in which relationships between two or more system-level computing components are defined, in which each system-level computing component is associated with a behavioral model, and in which each relationship between system-level computing components is defined as a message-based communications interface. During simulation of the solution, messages are created by analysis of each behavioral model, and are transported or exchanged between system components. The debugging facility monitors interfaces between the system-level components, captures messages at the monitored interfaces, and adds tracking information to the captured messages. Following simulation, the stored messages and tracking information can be reformatted and displayed for review by the user to assist in determination of the problems in system-level operation.