There are several strategies for summarizing process. We have been examining those strategies thus we have developed several systems in these several years. Current system is designed by an idea from Controlled Linguistic Model (developed for Legal Phrases Processing). It recognizes function of each sentences then selects sentences to be removed or unremoved whose process produces the summary as a result.
A picture listed below is a copy of the display of the stand-alone version of TESS. We have a plan to demonstrate the Web version of TESS on this URL soon.