Dave RaggettIs one of the Web pioneers, Member of W3C team and has been involved with the development of Web standards since the early nineties, UK
Talk title: Using the Web to unlock the IoT for open markets of services
The Web of Things is a W3C framework for open markets of services based upon connected devices with sensors and actuators. Such devices vary considerably in their capabilities and communication technologies. This makes it challenging to create services involving devices from different vendors and using different standards.
The Web of Things makes this very much easier by allowing applications to interact with software objects that act as proxies for physical or abstract entities. Each thing is described, in a programming language neutral way, as an object with properties, actions and events, together with additional metadata, including links to semantic models.
Applications can produce things for consumption by other applications. Such consumers may reside on the same device, gateway or cloud platform, or on other such systems, with user interfaces in web pages running on web browsers, or in native applications, e.g. on smart phones and tablets.
To enable open markets of services, things need to be discoverable and accessible on open platforms. In many cases devices will be hidden behind firewalls. In some cases, devices could supply things directly to open Internet platforms running outside of the firewall. In other cases, a gateway is needed. Applications installed on the gateway abstract devices as things and supply these things to external open Internet platforms. Gateways can provide support for a broad range of device protocols, e.g. CoAP, Bluetooth, Zigbee, MQTT, LPWAN, etc.
Semantic models are needed to support discovery, composition and adaptation to variations in capabilities across different models of devices, and across devices from different manufacturers. This calls for descriptive rather than prescriptive models of capabilities.
Biography: Dr. Dave Raggett is one of the Web pioneers, and has been involved with the development of Web standards since the early nineties. He helped to launch standards work on HTML, HTTP and many other Web technologies. He has an active interest in open source, and is the W3C champion for the Web of Things and the W3C lead for the Data Activity. He was awarded his doctorate at the University of Oxford, and is a member of the W3C staff, and attached to the W3C European office hosted by ERCIM in Sophia Antipolis, France.