Expain value Analysis to me in detail

Value Analysis is a systematic, interdisciplinary approach to improving the value of a product, system, or service by analyzing its functions and associated costs. Its primary goal is to achieve the required functions at the lowest total cost without sacrificing quality, reliability, or performance. This is done by identifying and eliminating unnecessary costs while maintaining or enhancing the value delivered to the customer. It often involves a team reviewing design, materials, and processes to find alternative solutions that offer better value.