Prototyping
Prototyping
Prototyping is the process of creating a model or early version of a product to explore ideas, test concepts, and gather feedback before final production.
- Prototyping is a critical step in the iterative design process
- Two primary techniques are used:
- low-fidelity prototyping
- high-fidelity prototyping

| Aspect | Low-Fidelity | High-Fidelity |
|---|---|---|
| Detail Level | Basic, conceptual | Detailed, realistic |
| Cost and Time | Low | High |
| User Feedback | Focuses on core concepts | Provides accurate insights |
| Flexibility | Easy to modify | More challenging to change |
| Use Cases | Early-stage exploration | Final-stage testing and presentation |
Low-Fidelity Prototyping
Low-Fidelity Prototypes
Simple, quick, and inexpensive representations of a product. Often made using paper, cardboard, or rough digital sketches.

- Cardboard model of a handheld vacuum to test grip and reach
- Foam block mock-up of a TV remote to evaluate size and button placement
- Paper and string prototype of a foldable chair to test folding mechanics
- Clay mock-up of a toothbrush handle to trial the ergonomic shape
- 3D sketch model of a desk lamp using simple materials to test proportions
| Advantages | Disadvantages |
|---|---|
| Fast and cheap to create | Limited interactivity and realism |
| Identifies major design flaws early, minimising costly changes later | Doesn’t reflect real-world performance |
| Encourages early feedback and iteration | Users may struggle to envision the final product, affecting the quality of feedback. |
| Minimal resources or tools required | Inadequate for evaluating technical performance |