Testing is crucial in the design thinking process for several important reasons, each tied to a critical aspect of product development:

• Meeting user needs: Testing concept designs or prototypes with customers ensures that the product meets their wants and needs, confirming its practical appeal to the target audience.
• Market viability: It's not sufficient for a product to interest a small group; it must have a large enough market for a successful business. Testing helps determine market saturation and guides decisions on product positioning.
• Practicality: Testing assesses the feasibility of turning a concept into a functional product. This involves considering the availability of resources, necessary technology, and whether the concept can be realized within existing constraints.^[1]