Towards a Software Architecture for Near Real-time Applications of IoT Topics: IoT Services and Applications; Modeling, Experiments, Sharing Technologies & Platforms; Modern Architecture; Software Engineering Approaches, including Formal Methods, Agile Methods and Theoretical Algorithms for IoT and Big Data; System Design and Architecture In Proceedings of the 4th International Conference on Internet of Things, Big Data and Security IoTBDS - Volume 1, 197-206, 2019 , Heraklion, Crete, Greece