Compare the data for the old product being used as the reference (product A) with the new product being evaluated (product B).
(This example uses assumed product data for a refrigerator.)
![[Image] Comparing the data for the old product being used as the reference (product A) with the new product being evaluated (product B).](/environment/library/glossary/hj/images/factoryx_2_01.gif)
Insert the data from each product into the formula for resource efficiency.
![[Image] Resource efficiency is a number derived by dividing the multiplication of "Product life span" and "Product function" by multiplication of "Σ Each resource value coefficient" and "Resources used over product life cycle".Insert the data from product A and B into the formula for their resource efficiency.](/environment/library/glossary/hj/images/factoryx_2_02.gif)
Insert the values obtained above into the formula for the resource factor.
![[Image] Resource factor is a number derived by dividing resource efficiency for product being evaluated (product B) by resource efficiency for reference product (product A).](/environment/library/glossary/hj/images/factoryx_2_03.gif)
This gives a resource factor for product B of 1.75.
