Contemporary product development would be unthinkable without computer-aided engineering. In the past, companies often used to design products based on experience or estimation formulas, but knowledge-based virtual development (CAE) has been standard practice in the automotive industry for many years now. The process is also gaining in popularity in other sectors. In a new explanatory clip, TECOSIM briefly explains how the method assists CAE engineers in meeting increasing requirements for safety, comfort and environmental protection.