Design for platforms in an uncertain future. Service design often involves creating a network of people and things that act together to create a service. Platform design goes beyond designing individual services, towards designing platforms from which multiple services, journeys and interactions can be built. For example, rather than designing a single healthcare service, a platform approach constructs the internal and outward-facing systems that allow a provider to co-ordinate the development and delivery of its whole portfolio of services. Similarly, rather than designing a mobile app, a platform can produce a whole range of services built around a new technology, provided through a network of devices, users, and partners linked by data flows and revenue streams. In this talk, Louise Downe outlines Engine’s approach to designing platforms, the typical challenges projects face and ways teams can successfully address them.