The document discusses technology ecosystems and linkages. It defines a technology ecosystem as including government policies and funding, technology incubators, institutes/universities, R&D centers, and technology companies that develop and consume talent and technology. Mapping a technology ecosystem involves identifying the focal technology, its context of use, partners, developers, and end consumers. Technology linkages often lead to innovation by combining multiple technologies like solar, wind and gas for energy generation or sensors, communication, big data and computing for health monitoring systems. Managing multidisciplinary knowledge and interfaces between technologies are challenges with linkages.