%==========================================================================
% File Name     : <Comparison.m>
% Usage         : Sol = Comparison(Solution, Upper, Outer)
% Description   : This function provides the different comparison
% strategies known so far, which are: creating an envelope of solutions,
% affine comparison (e.g. using McCormick) and exact comparison
%--------------------------------------------------------------------------
% Author        : Richard Oberdieck, Nikolaos A. Diangelakis
% Office        : Giesecke Engineering Research Building, Texas A&M, USA.
% Mail          : paroc@tamu.edu
%--------------------------------------------------------------------------
% Last Revision | Author  | Description
%---------------+---------+------------------------------------------------
% 12-May-2014   | RO      | Initial Version
%---------------+---------+------------------------------------------------
% 30-Oct-2015   | RO      | Final adaptation
%==========================================================================