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Connected and interoperable healthcare system promises to reduce thecost of the healthcare delivery, increase its efficiency and enableconsumers to better engage with clinicians and manage their care. However at the same time it introduces new risks towards security andprivacy of personal health information, which are considered to beprominent impediments towards the realization of full benefits of connected health. In the connected healthcare system of future, different security technologies will be used to address security risks indifferent trust domains. For the domain of personal health and healthy lifestyle services, which is less trusted, additional security mechanisms (e.g. digital rights management) are required next to access control which is traditionally used in the professional medical domain. To realize the vision of connected health, all these mechanisms should be interoperable with each other. In this paper we providean interoperability framework which allows digital rights managementand access control systems to seamlessly work together through theuse of ontology.

Digital Rights Management (DRM) is used to protect copyrighted content from unauthorized use. However, it is still remains challenging to strike a balance between content sharing and rights management. Marlin is developing open standards for interoperable DRM technology.The Octopus and Nemo frameworks in Marlin are the underlying technologies to realize seamless content sharing and rights management in support for the wide variety of business models. We further demonstrate the use of Octopus and Nemo in a practical manner by means of Marlin Broadband Network Services (MBNS) and Marlin Shared Domain (MSD), while Marlin Simple Secure Streaming (MS3) is designed for protecting streaming content. We perceive Marlin as the first step towardscreating an open and interoperable DRM ecosystem through examples deployments of Marlin technology in the market.