Ready to start building a prototype? Before you start, it's important to validate that the problem your product addresses is a problem worth solving. Julia Austin, Senior Lecturer at HBS and expert in product development, shares helpful tips and tools to help you ensure that you're on the right track.
![](https://founders-journey.org/wp-content/uploads/2019/08/shutterstock_524765743-e1565116975783-300x168.jpg)