Wikipedia
SmartDeviceLink
SmartDeviceLink is a project which intends to standardize and wrap the many in-vehicle interfaces which may exist in the automotive context. The end goal is to provide an expandable software framework to both mobile application developers and automotive head unit creators for the creation of brought-in applications that appear integrated onto a head unit.
SmartDeviceLink consists of two distinct parts of software; a core automotive piece which wraps in-vehicle services and integrates to the in-vehicle HMI, and a mobile proxy, which executes APIs to access and use services on the automotive head unit.