GooSeeker

Shown in above figure, there are 8 regions on the GUI:

1. menu bar
2. tool bar
3. DOM tree viewer: The target page's DOM tree is shown here.
4. Work boards: There are multiple work boards each of which is in a tab window and has a set of tools to define a data schema and to define data and clue extraction rules.
5. DOM node attribute viewer: The attributes of a DOM node are shown.
6. DOM node path viewer: An reformed XPath expression to position a DOM node is shown.
7. output windows: There are multiple tab windows for kinds of output.
8. status bar