In the VA/VE process we investigate how we can optimize the relationship between the functionality and costs of a solution. By mapping out functions, with an associated cost analysis, we gain a better insight into a design.
In fact, VA/VE looks for the most cost-effective interpretation of a design. For example, by identifying and changing or eliminating features or functions that add little value and cost relatively much, resulting in a higher profit margin. Or by adding features or services for which a customer is willing to pay more.