EXPLORING EXTENSIBILITY AND INTEROPERABILITY IN THE INTERNET OF THINGS LANDSCAPE.

The Internet of Things (IoT) has been growing at a fast pace, with evolutions comprising a wide range of technologies and programming interfaces. More and more companies are entering in the IoT market, introducing new devices, use cases and solving common problems in novelty ways. This context of accelerated rhythm ends up creating a certain chaos when addressing IoT standardization. Meanwhile open IoT communities have been able to establish few standards that allow a more homogeneous ecosystem, interoperability between device networks is still a pertinent issue for IoT application developers. In our literature review, we observe the gap on addressing both extensibility and interoperability in the IoT landscape. IoT++ also explores extensibility by providing an agnostic IoT protocol model, so working with different communication models including synchronous and asynchronous semantics. The scientific contribution appears on not providing another IoT API, but maintaining the current ones, so allowing communication between different technologies effortlessly. We developed a prototype that comprised the HTTP, MQTT and CoAP technologies. The tests revealed a short IoT++ overhead on translating and forwarding messages between the aforesaid protocols. [ABSTRACT FROM AUTHOR]