This book constitutes the refereed post-conference proceedings of the Third International Conference on Interoperability, InterIoT 2017, which was collocated with SaSeIoT 2017, and took place in Valencia, Spain, in November 2017.

A Bayesian approach for an efficient data reduction in IoT.- Battery Friendly Internet of Medical Media Things Networks.- Semantically Enriched Hypermedia APIs for Next Generation IoT.- Smart Devices for Automated Emergency Calls.- A Standardizable Network Architecture Supporting.- AmI open source system for the intelligent control of residences for the elderly.- A Scalable Agent-based Smart Environment for Edge-based Urban IoT Systems.- Observing Interoperability of IoT Systems Through Model-Based Testing.- Towards high throughput semantic translation.- Assessing the Impact of Mobility on LoRa Communications.- A Reinforcement Protection Game in the Internet of Things.- Safety-Related Wireless Communication via RF Modules for Industrial IoT Applications.- Blockchain and IoT: Mind the Gap.- Lightweight X.509 Digital Certificates for the Internet of Things.- Privacy preserving and resilient cloudified IoT architecture to support eHealth systems.- Using Physical Unclonable Functions for Internet-of-Thing Security Cameras.- Smart Wearable System for Safety-related Industrial IoT Applications.