Factor X is a measurement that simultaneously considers both improvement to our quality of life through products that are easy to use, safe, and convenient, and production that is kind to the global environment.
Factor X is an index that compares the environmental efficiency of a new product (the product being evaluated) with that of a previous product (reference product) and expresses the improvement in terms of a multiple (factor).
Environmental efficiency is a number derived by dividing "quality of life" by "environmental impact" that expresses the "value of the product in terms of its effect on the environment", where "value" means the life span and functions of the product.
![[Image] Factor X is a number derived by dividing "quality of life" by "environmental impact".](/environment/library/glossary/hj/images/factorx01.gif)
![[Image] Improving the quality of life with "Comfort and convenience", "Greater safety and peace of mind" and "Universal design".](/environment/library/glossary/hj/images/factorx02.gif)
![[Image] Reducing impact on environment with "Global warming prevention", "Treat resources wisely" and "Reduce use of chemicals".](/environment/library/glossary/hj/images/factorx03.gif)
The term "factor X" is used to represent the multiple of improvement over the current situation in terms of these measures. For example, "factor 4" means a four-fold improvement and "factor 10" a ten-fold improvement.
The higher the factor X value, the more the product helps achieve the "new affluence".
The two different factors used to evaluate "environmental impacts" are the factor of global warming prevention and the resource factor.
Numeric estimate of the contribution to global warming prevention (energy conservation)
![[Image] Factor of global warming prevention is a number derived by dividing "Improving the quality of life" by "global warming prevention".](/environment/library/glossary/hj/images/factorx04.gif)
First, obtain the efficiency of global warming prevention for the new product (product to be evaluated).
![[Image] Efficiency of global warming prevention is a number derived by dividing the multiplication of "Product life span" and "Product function" by "Amount of greenhouse gas emissions through life cycle of product".](/environment/library/glossary/hj/images/factorx05.gif)
Next, compare against old product (reference product).
![[Image] Factor of global warming prevention is a number derived by dividing "Efficiency of global warming prevention of reference product" by "Efficiency of global warming prevention of product being evaluated".](/environment/library/glossary/hj/images/factorx06.gif)
Numeric estimate of the contribution to effective resource use
![[Image] Resource factor is a number derived by dividing "Improving the quality of life" by "Treat resources wisely".](/environment/library/glossary/hj/images/factorx07.gif)
First, determine the resource efficiency of the new product (product to be evaluated).
![[Image] Resource efficiency is a number derived by dividing the multiplication of "Product life span" and "Product function" by the multiplication of "Σ Each resource value coefficient" and "Resources used over product life cycle".](/environment/library/glossary/hj/images/factorx08.gif)
Next, compare against old product (reference product).
![[Image] Resource factor is a number derived by dividing "Resource efficiency of product being evaluated" by "Resource efficiency of reference product".](/environment/library/glossary/hj/images/factorx09.gif)
