W3C Invites Implementations of TTML Profiles for Internet Media Subtitles and Captions 1.0.1 (IMSC1)

13 July 2017 | Archive

The Timed Text Working Group invites implementations of TTML Profiles for Internet Media Subtitles and Captions 1.0.1 (IMSC1) Candidate Recommendation. This document specifies two profiles of [TTML1]: a text-only profile and an image-only profile. These profiles are intended to be used across subtitle and caption delivery applications worldwide, thereby simplifying interoperability, consistent rendering and conversion to other subtitling and captioning formats. This revision of the IMSC1 adds two new features (ittp:activeArea and itts:fillLineGap) to the Recommendation dated 21 April 2016.

W3C Invites Implementations of Semantic Sensor Network Ontology

11 July 2017 | Archive

Relationship between SOSA and SSN ontologies and their vertical and horizontal modules The Spatial Data on the Web Working Group invites implementations of Semantic Sensor Network Ontology Candidate Recommendation. 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.

First Public Working Draft: CSS Fonts Module Level 4

11 July 2017 | Archive

The CSS Working Group has published a First Public Working Draft of CSS Fonts Module Level 4. Building on CSS Fonts 3, which defines the @font-face rule and provides OpenType feature support, CSS Fonts 4 add support for OpenType Variable fonts, and gives stylesheet designers a way to style the colors in chromatic (multicolored) fonts.

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