Monitoring Application Execution in Debug View 
The Debug perspective contains the Debug View, which is based on the Eclipse Platform debug framework.
Debug View displays the progress of the application execution. Each application is represented by a tree, whose root is denoted by a 
(bug)
icon, and the name of the debug configuration. Below the root, there is a node for each model in the application. Below each model you see a list of the debugged steps executed in the model. The Debug View toolbar has icons that enable you to control the
progress of the execution, such as Suspend, Resume, Terminate, and stepping actions. For more information, see Stepping Through
the Application.
Note
When first starting a debug session, the stepping buttons of Debug View are disabled, until a breakpoint is reached.
Note
When using Step Over, if the application stops because it reaches a breakpoint, you see the step in Debug View before the step was executed. Choosing Step Over again executes the step and then it is listed in Debug View after its execution.