Dynamic semantic interoperability of control in IoT-based systems: Need for adaptive middleware

The Internet of Things (IoT) phenomenon is giving rise to large scale IoT deployments comprising thousands of IoT devices with large degree of heterogeneity. The heterogeneity is further aggravated by dynamism-new applications and requirements, changes in capabilities of devices during their life-cycle and mobility of devices and applications. This is leading to semantic interoperability issues among these devices, which is hindering the ability of system designers to draw the maximum value from these deployments. To address this problem, we present InteropAdapt, an adaptive middleware that can maintain seamless semantic interoperability across dynamic events. The central aim of this paper is to exhibit different architectural elements of InteropAdapt in some detail. We also illustrate InteropAdapt via a simple yet realistic example in the smart office automation domain.