Value engineering is a systematic approach to reducing unnecessary costs while maintaining product quality and reliability. It answers the question of what else can accomplish the intended purpose at a lower cost. Value engineering was developed at General Electric during World War II to deal with material shortages by finding acceptable substitutes. Over time, it evolved into a broader application across industries to reduce total product costs through the consideration of development, production, and application costs. The goal of value engineering is to reliably provide necessary functions at the lowest overall cost through a planned approach.