The document discusses using big data in product design. It provides examples of Danish companies innovating through big data, including LEGO using social media data to inform product design, Vestas using weather data from turbines to choose wind farm locations, and a startup collecting wind speed data through an app. The document also discusses using big data to create new online services like a real estate portal and e-invoicing system. Finally, it outlines how Danish cities like Aarhus are releasing open data to power smart city applications like traffic monitoring and finding available parking. Overall, the document promotes the benefits of data-driven business while also noting barriers that must be overcome.