WoTnectivity: A communication pattern for different Web Of Things connection protocols

The Web of Things proposes an IoT device definition framework, the Thing Description. Conceptually, this definition covers a wide range of devices, protocols, and data types. On the other hand, the proliferation of IoT devices and the traits that they usually exhibit, such as limited number of resources, leads to the emergence of bottlenecks that cause the slowdown of requests and even the shutdown of devices. To solve these problems, we introduce the concept of Digital Dice, a digital representation of an IoT device based on microservices that uses the framework established by the W3C Web of Things. This article describes WoTnectivity, a mechanism that allows the connection of multiple protocols on IoT devices by means of several common communication patterns. Besides, establishing the possibility of connecting with different protocols, WoTnectivity has been developed with future expansion in mind, thus an explanation on how to add more protocols is also studied in this paper.