Choosing XMPP
Due to the versatile nature of XMPP compared to other protocols, XMPP is proposed to work as a backend protocol, interconnecting islands of devices communicating using other means. Since it supports the common communication patterns used in other technologies, standardized as well as legacy technologies, it can also bridge seamlessly between XMPP and the corresponding underlying technology. The federated aspect of XMPP makes it possible to seamlessly integrate islands into a whole.
The proposal also aims at creating standardized interfaces for a decentralized open, secure, and interoperable infrastructure for the Smart City. These interfaces will act as the proposed abstraction layer, facilitating harmonization between technologies. ...
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