We consider the installation of a Building Automation Control (BAC) system
to illustrate the lifecycle of a thing. A BAC system consists of a network of
interconnected nodes that perform various functions in the domains of HVAC
(Heating, Ventilating, and Air Conditioning), lighting, safety etc. The nodes vary
in functionality and a majority of them represent resource constrained devices
such as sensors and luminaries. Some devices may also be battery operated or
battery-less nodes, demanding for a focus on low energy consumption and on
sleeping devices.