Product design is an iterative process. Models are a critical part of that process. It is imperative that a single tangible representation of the product that has to be mass produced is made so that one can touch, feel, test and evaluate the way the final product will actually look, work and interact with its environment. The goal of this course is to study, understand and explore techniques of this tangible representation, also known as prototyping. Modeling concepts, types of prototypes, prototyping cycles will be covered. The students will be introduced to soft prototypes, 3D quick models, paper and quick mock up models, principle models etc. Interactive prototyping methods and introduction to rapid prototyping should also be explored. Students should gain the skills to evaluate a design and decide how best it can be simulated in real life using available materials and resources.