The article discusses a new way to design and make products called Concurrent Design and Manufacturing (CDM). This method combines computer simulations and virtual prototypes to help a team analyze how a product will perform, how reliable it will be, and how much it will cost to make. By doing this early in the design process, the overall time and cost of developing a product can be reduced. The researchers also use physical prototypes to verify the design. This approach can improve the quality of products and make them cheaper to produce. The researchers are developing a software tool to support this method, and they show how it works using an example of a two-stroke engine.