1. Class diagram ECF 3.000 MainFrame Package ECF3.ui (user interface) MenuBarMainPanel MainCenterPanel JButton(" MainPanelButtonNorth ")JButton(" MainPanelButtonSouth ") Model model; JSplitPane Model model; JScrollPane LeftComponent RightComponent NodeTree Model model; DefaultTreeModel treemodel; GraphsPanel Model model; JDesktopPane LayerFrame Model model; DefaultDesktopManager JInternalFrame * Observer JTree

2. Class diagram ECF 3.000 LayerFrame Model model; LayerPanel Model model; JPanel JScrollPane Package ECF3.ui (user interface)

3. Class diagram ECF 3.000 Model ECFTreeNode nodeRoot children * parent Package ECF3.model DefaultTreeModel treemodel DefaultMutableTreeNode Observable Models singleton *

4. Sequence diagram ECF 3.000 MainFrame new MainFrame() Model model = new Model() MenuBar new MenuBar( model ) MainPanel new MainPanel(model) Model model; new MainCenterPanel(model) MainCenterPanel Model model; new NodeTree(model.getTreeModel ()) new GraphsPanel(model) NodeTreeGraphsPanel DefaultTreeModel treemodel NodeTree treeNodes; ECFTreeNode nodeRoot; Model model;