KnowCube®, a novel multi criteria decision making tool, is introduced. Its userfriendly interface assists “intuitive surfing through decision spaces” by means which are also familiar to non-experts. Causes and effects of alternatives may be examined from different points of view, and...

Visualization of data envelopment analysis (DEA) problems can be a very informative step in order to get insight into the problems and their characteristics. Through the various visualization methods, one can literally look at the DEA problem and the related data from different perspectives....