This is the Design Process, a cornerstone of the PLTW program and a guideline for engineering, innovation, and invention. Throughout the year, our class has explored the benefits of using the design process, and have seen it at work in various products, from shopping carts to toy cars. The first step, defining the problem, allows for better personal or team understanding of the problem being solved. The second step, generating concepts, is to come up with an idea or ideas that fix the product, while still being in scientific knowledge, meaning you can actually build everything you need to make it work without further research. Step three, developing a solution, is to take the generated ideas and either combine or choose one of them in order to make a design that fully solves the problem. Step four is the construction and the testing of a prototype of the design made in step three, and step five is the evaluation of the prototypes performance. If the prototype was a success, then you proceed to step six: presenting your solution.