Accessors are a technology for making the Internet of Things accessible to a broader community of citizens, inventors, and service providers through open interfaces, an open community of developers, and an open repository of technology. Accessors enable composing heterogeneous devices and services in the Internet of Things (IoT).
An actor is a software component that reacts to streaming input events and produces streaming output events. An accessor is an actor that wraps a (possibly remote) device or service in an actor interface. An accessor host is a service running in the network or on a client platform that hosts applications built as a composition of accessors that stream data to each other. The host is like a browser for things.