The process of combining information from multiple sensorsA device that can measure something about its environment. Examples are movement, light, color, moisture, pressure, and many more. (real or virtualIn our context, refers to what are usually software models of some physical thing. The model behaves like the real thing except, in some cases, in performance.) in order either to give more confidence in a result or to come up with something completely new.
Inside the Internet of Things - Bryon Moyer Blog