CitySys is respected, open, native IoT homogeneous data-integration-analytical-aggregation-visualization IoT platform built on standards and shared components supporting cross-domain interoperability and building sustainable large urban digital ecosystems CitySys - Smart City IoT system benefits . cross-domain interoperability . open system just based on standards . effectively, plug in model to create edge layers in Smart Cities . ready to host in cloud based on your needs – cloud independent IoT platform . excellent and unique GUI connecting objects with services and having all vertical, third party systems, analytical tool, IOT devices, ... in one place . AI almost ubiquitous . Data.driven Smart City