Virtual Modeling and simulation of performance is the key step in any product design. Analysis Led Design (ALD) tools developed in FFPL, achieves this goal by design and performance evolution, captured from the voice of the customer. The design evolution chart shown below captures the development cycle for some of our products. There are two main steps required in any design evolution viz., the “validation step” and the “verification step”. To ensure quality and reliability of products, verification step becomes an integral part of the product development. A big concern in the verification step is the perceived cost and time. Virtual modeling is the only way which helps in cutting down the lead time and cost drastically.