6 32 2 A Few Rules for Navigation

Consider whether navigation is really required. Does the functionality being implemented require a separate window?
Supply a menu, command button or toolbar button for the end user to move to another window.
Do not turn the menu structure of an existing LANSA process into a tree view. The purpose of a tree view is to display data.
Do not use a check box or radio button for navigation. Their purpose of these controls is to record the choices an user makes.