The function of software prototyping in product development is to create early models of a product to visualize and test ideas before final implementation. Prototypes allow developers to explore design concepts, gather feedback, and identify issues early in the development process, saving both time and resources. Iterative prototyping enables teams to refine functionalities and user interfaces through cycles of testing and revision. This approach enhances collaboration among stakeholders, encourages innovation, and ultimately leads to higher-quality products that meet user needs more effectively.