What does prototype iteration focus on?

Prototype iteration primarily focuses on refining a prototype based on user feedback and testing results. This process involves taking an initial version of a product concept, gathering insights from users regarding their interactions and experiences with it, and then making necessary adjustments to improve its functionality, usability, and overall user experience.

By continuously revising the prototype through multiple iterations, designers can address issues that were not apparent in earlier versions and enhance features that users find valuable. This cyclical nature of testing, learning, and refining is essential to ensure that the final product effectively meets the needs and expectations of its users, ultimately leading to better user satisfaction and product success.

The other options do not align with the primary aim of prototype iteration because developing entirely new concepts would typically occur in the initial stages of design, whereas collecting demographic data focuses more on understanding user profiles rather than refining products. Validating existing market strategies shifts the focus towards business and marketing aspects rather than the iterative process of improving a product design based on user feedback.