Support for Understanding GUI Programs by Visualizing Execution Traces Synchronized with Screen Transitions

To support understanding a specific GUI functionality in a program, we propose a visualization technique that presents the correspondence between the screens before and after the operation, as well as the traces of the source code executed by the operation. The presented traces include the executed lines and the method calls, which are fundamental information for understanding the functionality. They are represented as highlights that are superimposed on the entire source code.