What role does feedback play in the iteration process?

Feedback is essential in the iteration process as it provides designers with critical insights into both the strengths and weaknesses of their designs. This information allows them to make informed decisions about necessary adjustments and improvements during the product development cycle.

In the context of design, feedback can come from various sources, such as user testing, stakeholder reviews, and market research. This constructive criticism helps identify any flaws or areas that may not meet user expectations, enabling designers to refine their products. As a result, incorporating feedback effectively improves the overall quality, performance, and market readiness of the final product.

The other options relate to aspects of design and product development but do not capture the primary purpose of feedback in the iteration process in the same direct way. Delaying progress, steering budget allocations, or serving as a marketing tool does not reflect the foundational role of feedback in enhancing and optimizing designs for better user satisfaction and product effectiveness.