What is the role of models in the design process?

• A. They replace prototypes
• B. They are not useful
• C. Provides a visual for all to see and helps them to see the viability of the idea
• D. They are used only for demonstration

Answer: (C)

Models provide a visual, shareable representation of a concept so everyone can see how it might look and how it could work. This helps teammates and stakeholders discuss requirements, relationships between parts, and how the idea would perform under real constraints like size, cost, manufacturability, and user needs. By offering a simplified or scaled version of the idea, a model makes it easier to explore options, gather feedback, and identify potential issues early in the design process. This supports quick iterations and informed decisions before moving on to more detailed testing with physical prototypes. In short, models help communicate, assess viability, and guide refinement, rather than replacing prototypes or serving only as demonstrations.