Patent ID: 7761264

Claim:
An evaluation apparatus of environmental load comprising: BOM (bill of materials) storage means for storing information on parts structures, materials, and processes of a plurality of product design plans; evaluation means for calculating environmental load evaluation values for the product design plans using the parts structures, materials, and processes of the plurality of product design plans stored in said BOM storage means; evaluation result comparison means for calculating a difference between the environmental load evaluation values for the plurality of product design plans calculated by said evaluation means; parts/material/process comparison means for calculating a difference in the parts structure, material, or process between a plurality of product design plans stored in said BOM storage means; and display means for a parts tree of the parts structures for a user thereby to acquire selection of a part of the parts tree to be displayed and selection of vertical and horizontal axes as layouts of the part of the parts tree and displaying the difference between the environmental value evaluation values for the part of the parts tree calculated by said evaluation result comparison means, wherein said evaluation result display means displays the difference in the parts structure, material, or process between the plurality of product design plans for products calculated by said parts/material/process comparison means according to the selection of the vertical and horizontal axes as layouts.