It would be a mistake to see engineering design as just a brilliant idea. The material and physical limitations, undetected problems, competition conditions and commercial concerns that a design encounters while shaping it affect the result. In addition, even the users’ perception of quality and price plays an important role in determining the effort and investment spent on a design. Convincing investors and users that a design is the best solution for a related issue is also possible to explain the whole process with an effective presentation.