DependencyGraph graph = (DependencyGraph)getGraphModel();
Shell shell = graph.getShell();
Activator.getAccessLayer().invalidateCache(graph.getProject());
DistanceBasedImpactAnalysisWizard wizard = new DistanceBasedImpactAnalysisWizard();
WizardDialog dialog = new WizardDialog(shell, wizard);
dialog.open();
List<EObject> startingImpactSet = new ArrayList<EObject>();