Recent advances in computer systems and in communication technologies and protocols, as well as in service-oriented architectures, constitute a prelude to the Internet of Things (IoT) technology. The main feature of this technology is the integration of heterogeneous and multimodal sensors, processing units and action elements (actuators) in a distributed environment. Billions of devices are expected to be interconnected and integrated as services, which could be used and re-used by developers making the building and realization of complex applications easier. The coming new digital market envisions the physical world, computer-based systems and humans to be integrated and seamlessly interoperable, resulting in an improved social and economic marketplace; a vision that is well-imprinted in the SYNAISTHISI reference architecture. In this talk, the architecture of the SYNAISTHISI IoT platform will be presented along with the challenges that were faced during its development. SYNAISTHISI platform has been designed from ground-up in order to
a) be horizontally-scalable to support the actual ongoing operational needs as they grow from a handful up to thousands of devices with minimal configuration changes,
c) be friendly to the most popular open messaging APIs, accepting REST calls and MQTT-based clients,
d) be istributed over multiple Cloud Systems, and
e) be versatile to custom application needs requiring limited programming effort.
Additionally, late breaking results of the SIEMENS grant will be discussed where we focused in Smart Home applications and Energy Efficiency. Finally, technical limitations and outstanding capabilities will be presented to involve potential software engineers interested to contribute to the SYNAISTHISI platform, in an attempt to build a sustainable development team for the future of the SYNAISTHISI platform.