W3C

The Web Real-Time Communications Working Group invites implementations of the WebRTC 1.0: Real-time Communication Between Browsers Candidate Recommendation. This document defines a set of ECMAScript APIs in WebIDL to allow media to be sent to and received from another browser or device implementing the appropriate set of real-time protocols. This specification is being developed in conjunction with a protocol specification developed by the IETF RTCWEB group and an API specification to get access to local media devices developed by the Media Capture Task Force. Read more in our media advisory about how WebRTC becoming design-complete strengthens the Web Platform as a solid actor in the telecommunications arena.

The Web Platform Working Group has published a Proposed Recommendation of HTML 5.2. This specification defines the 5th major version, second minor revision of the core language of the World Wide Web: the Hypertext Markup Language (HTML). In this version, new features continue to be introduced to help Web application authors, new elements continue to be introduced based on research into prevailing authoring practices, and special attention continues to be given to defining clear conformance criteria for user agents in an effort to improve interoperability. Comments are welcome through 30 November 2017.

The Accessible Rich Internet Applications Working Group has published Proposed Recommendations of Digital Publishing WAI-ARIA Module 1.0 and Digital Publishing Accessibility API Mappings. DPub-ARIA defines a WAI-ARIA module encompassing an ontology of roles, states and properties specific to the digital publishing industry. This allows an author to convey user interface behaviors and structural information to assistive technologies and to enable semantic navigation, styling and interactive features used by readers. User agent implementation to date is shown in the DPub-ARIA implementation report and DPub-AAM implementation report. Comments are welcome through 30 November 2017.

The Accessible Rich Internet Applications Working Group has published Proposed Recommendations of Accessible Rich Internet Applications (WAI-ARIA) 1.1 and Core Accessibility API Mappings 1.1. WAI-ARIA recommends approaches for developers to make widgets, navigation, and behaviors accessible to people with disabilities. WAI-ARIA 1.1 adds features new since WAI-ARIA 1.0 to complete the HTML + ARIA accessibility model and supports additional modules for digital publishing and graphics. User agent implementation to date is shown in the WAI-ARIA implementation report and Core-AAM implementation report. Comments are welcome through 30 November 2017.

The Spatial Data on the Web Working Group has published a W3C Recommendation of the Time Ontology in OWL specification. The ontology provides a vocabulary for expressing facts about topological (ordering) relations among instants and intervals, together with information about durations, and about temporal position including date-time information. Time positions and durations may be expressed using either the conventional (Gregorian) calendar and clock, or using another temporal reference system such as Unix-time, geologic time, or different calendars.

The Spatial Data on the Web Working Group has published a W3C Recommendation of the Semantic Sensor Network Ontology. The specification defines an ontology for describing sensors and their observations, the involved procedures, the studied features of interest, the samples used to do so, and the observed properties, as well as actuators.

SSN follows a horizontal and vertical modularization architecture by including a lightweight but self-contained core ontology called SOSA (Sensor, Observation, Sample, and Actuator) for its elementary classes and properties. With their different scope and different degrees of axiomatization, SSN and SOSA are able to support a wide range of applications and use cases, including satellite imagery, large-scale scientific monitoring, industrial and household infrastructures, social sensing, citizen science, observation-driven ontology engineering, and the Web of Things.

The Tracking Protection Working Group invites implementations of an updated Candidate Recommendation of Tracking Preference Expression (DNT). This specification defines the DNT request header field as an HTTP mechanism for expressing a user’s preference regarding tracking, an HTML DOM property to make that expression readable by scripts, and APIs that allow scripts to register exceptions granted by the user. It also defines mechanisms for sites to communicate whether and how they honor a received preference, including well-known resources for retrieving preflight tracking status, a media type for representing tracking status information, and the Tk response header field for confirming tracking status.