Introduction to Engineering Design (IED) EOC Practice Test

Sketching ideas is about quickly and clearly communicating concepts. In the early design stage, you want to explore many options without investing time or resources in detailed models. Quick sketches capture the overall shape, layout, relationships between parts, and the intended function so teammates and stakeholders can understand the concept and give feedback. They emphasize intent over precision, making it easy to iterate and compare ideas. Prototypes, by contrast, are used later to test and refine form and performance with real materials, while detailed manufacturing instructions and financials require measurements and documentation far beyond sketching.