Which term describes a full-scale working model used to test a design concept by making actual observations and necessary adjustments?

Which term describes a full-scale working model used to test a design concept by making actual observations and necessary adjustments?

• A. Prototype
• B. Model
• C. Diagram
• D. Mock-up

Answer: (A)

The main idea is using a fully functional version that operates as the real product to test how the design works in practice and to make changes based on actual observations. A prototype is a working, full-scale model built to explore performance, usability, safety, and manufacturing implications, allowing iterative refinements until the concept meets the requirements. A model is usually a simpler representation used to visualize structure or relationships without functioning components. A diagram is a two-dimensional drawing that shows parts and connections but does not operate. A mock-up is a non-working replica used to study look, feel, or fit, not to test operating performance.

The main idea is using a fully functional version that operates as the real product to test how the design works in practice and to make changes based on actual observations. A prototype is a working, full-scale model built to explore performance, usability, safety, and manufacturing implications, allowing iterative refinements until the concept meets the requirements.

A model is usually a simpler representation used to visualize structure or relationships without functioning components. A diagram is a two-dimensional drawing that shows parts and connections but does not operate. A mock-up is a non-working replica used to study look, feel, or fit, not to test operating performance.