We need to re-org the navigation tree to improve the usability. So that web console needs to support:
1, more than 2 level menu.
2, easy menu item sequence definition.
Nice to have:
1, ajax like style navigation system, that means the banner and the navigation tree will be separated from the portlets content.
2, a quick launcher box in the top of the navigation section so that the user can quickly launch a function in seconds without finding the function in the tree.