Introduction to Engineering Design (IED) EOC Practice Test

In engineering design, building a working model and testing it is the prototyping phase. You construct a prototype to evaluate how the solution performs in the real world, checking form, fit, function, safety, usability, and manufacturability. Testing the prototype provides data that reveals problems and guides refinements, helping you validate the concept before moving to final production. Other steps focus on planning, brainstorming, or implementing the chosen idea, but they don’t center on creating and testing a tangible model.