DEVICE, METHOD AND PROGRAM FOR CALCULATING INFLUENCE ON SHARE CAUSED BY LEVEL CHANGE

摘要

PROBLEM TO BE SOLVED: To provide data directly showing variation of a share due to a level change of attributes of a target commodity.;SOLUTION: A reference share μ1% of the target commodity μ is calculated from the levels E2, H2, J1, and K1 or the like inside each the attribute of the target commodity stored in a 'commodity/attribute/level' DB and a utility value of each the level inside each the attribute stored in an 'attribute/level/utility value' DB. The shares μ2%, μ3%, μ4%, μ5%, μ6%, μ7%, and μ8% or the like of the target commodity when changing the level of the target commodity are calculated from E1, E3, H1, H3, H4, J2, K2 obtained by changing the levels of the target commodity, and their utility values. Indexes showing the change of the shares are calculated from the share μ1% before the change and the shares μ2%, μ3%, μ4%, μ5%, μ6%, μ7%, and μ8% or the like after the change, are stored by associating with the levels after the change.;COPYRIGHT: (C)2006,JPO&NCIPI