The article presents a method to analyze how products perform under different physical conditions throughout their life cycle. With advancements in technology, computers are now used to help design products more efficiently. However, current computer tools only show basic information about products and don't consider all the physical effects they may face during manufacturing and use. This can lead to products not meeting customer needs. The new methodology suggested in the article integrates these physical effects into product performance simulations, taking into account variations that occur throughout the product's life cycle.