The era of the platform economy has arrived. Companies are faced with how to build up disruptive digital services with disruptive business models and how to establish a digital ecosystem. Traditional UCD methods focus on the conception of particular services. However, most of these are isolated solutions of single companies. Building services for the digital transformation era requires additional methods in order to come up with end-to-end consumer experiences and sustainable business models across the boundaries of single companies for the benefit of consumers. In this course, the participants will learn the "Tangible Ecosystem Design“ method (TED), which supports the conception of digital ecosystems through the use of tangible elements.