A method and apparatus for specifying the hierarchy of pages in a web site. The apparatus may include a graphical user interface providing a window including a display space for displaying a navigational structure for the web site on an output device. The tool includes an import tool for selecting a...http://www.google.com.tw/patents/US6191786?utm_source=gb-gplus-share專利 US6191786 - Navigational file system
