Well-defined users or customers influence product development by providing clear targets for whom the product is being developed. Understanding the specific needs, preferences, and behaviours of the users or customers helps in creating features and improvements that deliver the most Value. This user-centric approach ensures that the product meets the actual demands of its intended audience.
Engaging with well-defined users or customers throughout the development process provides valuable feedback and insights. This continuous interaction helps in refining the product, ensuring that it remains relevant and useful to its users.