In his Interop19 keynote address, Brian McCarson, Vice President & Senior Principal Engineer, Industrial Solutions Division Internet of Things Group, Intel Corporation, discusses the many challenges with trying to drive openness in a world of walled gardens. But, those challenges are well worth taking on. Proprietary and open systems are not mutually exclusive. There is a rational approach to interoperability that can strike a balanced approach that enables consumer choice and proprietary value. Designing with openness and partnerships in mind will derive greatest value for your enterprise and the ecosystem.