Monte Carlo simulations, named for the city in Monaco, were developed during the 1940s with the Manhattan Project. But today’s simulation software can be used for a range of industries and applications to help people make decisions about their products and processes. Dr. Eric Maass, co-author of the book "Applying Design for Six Sigma to Software and Hardware Systems," explains that a lot of people don’t realize what they are missing out on by not using simulation software. By running simulations, they can take the guesswork out of applications. In addition, simulation modeling allows everyone involved in the process, from operators on the shop floor to those in management, to visually understand a system.