1. Device Shadow Service for AWS IoT. [Online]. Available: https://docs.aws.amazon.com/iot/latest/developerguide/iot-device-shadows.html. Last checked 28. April 2020 Device Shadow Service for AWS IoT. [Online]. Available: https://docs.aws.amazon.com/iot/latest/developerguide/iot-device-shadows.html. Last checked 28. April 2020
2. Node-RED---Low-code programming for event-driven applications. [Online]. Available: https://nodered.org. Last checked 28. April 2020 Node-RED---Low-code programming for event-driven applications. [Online]. Available: https://nodered.org. Last checked 28. April 2020
3. Understand and use device twins in IoT Hub. [Online]. Available: https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-device-twins. Last checked 28. April 2020 Understand and use device twins in IoT Hub. [Online]. Available: https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-device-twins. Last checked 28. April 2020
4. Model-driven separation of concerns for service robotics