This system would allow the user to select various text mining tools and assemble them to create a complex filter that fulfills whatever knowledge discovery function is currently needed.
For example, in response to the crisis situation, an analyst might use text mining tools to discover important nuggets of information in a large collection of news souces.
The technique used to serve the need is association rule to identify relation ships among people, organizations, locations and event (shown with P, O, L, and E, respectively).