W3C News

ActivityStreams 2.0 is now a W3C Recommendation

drawing illustrating sharing social dataThe Social Web Working Group has published ActivityStreams 2.0 as a Recommendation. AS2 provides a JSON data model and vocabulary for representing common online social objects, activities, and the relationships between them. AS2 is anticipated to become the de-facto standard for sharing social data between disparate (perhaps decentralized) Social Web applications, and builds on the well-used ActivityStreams 1.0. The AS2 Vocabulary provides a core set of terms, which are extensible using JSON-LD, and extensions may be made stable by means of the Social Web Incubator Community Group. AS2 may be used as part of any protocol, but the Social Web Working Group is developing ActivityPub specifically for AS2-based client-to-server and server-to-server interactions.

First Public Working Draft: CSS Logical Properties and Values Level 1

The CSS Working Group has published a First Public Working Draft of CSS Logical Properties and Values Level 1. This module introduces logical properties and values that provide the author with the ability to control layout through logical, rather than physical, direction and dimension mappings. The module defines logical properties and values for the features defined in CSS21. These properties are writing-mode relative equivalents of their corresponding physical properties.

First Public Working Draft: Payment Handler API

The Web Payments Working Group has published a First Public Working Draft of Payment Handler API. The Working Group has previously published Payment Request API, which provides a standard way to initiate payment requests from Web pages and applications. User agents implementing that API prompt the user to select a way to handle the payment request, after which the user agent returns a payment response to the originating site. The new Payment Handler API defines capabilities that enable Web applications to handle payment requests, helping to streamline payments on the Web.

Spatial Data on the Web Best Practices Note Published

The Spatial Data on the Web Working Group has published a Group Note of Spatial Data on the Web Best Practices. This document advises on best practices related to the publication of spatial data on the Web and the use of Web technologies as they may be applied to location. The best practices presented here are intended for practitioners, including Web developers and geospatial experts, and are compiled based on evidence of real-world application. These best practices suggest a significant change of emphasis from traditional Spatial Data Infrastructures by adopting an approach based on general Web standards. As location is often the common factor across multiple datasets, spatial data is an especially useful addition to the Web of data.

W3C Invites Implementations of ActivityPub

The Social Web Working Group invites implementation of a revised Candidate Recommendation of ActivityPub. ActivityPub allows websites a direct social connection to user software, including Follow, Like, Share, and Comment, without an intermediate social network provider. It is built on the ActivityStreams 2.0 data format, and iterates on the design of OStatus, which last month saw a wave of mainstream interest with Mastodon. It provides a client to server API for creating, updating and deleting content, as well as a federated server to server API for delivering notifications and subscribing to content.

W3C Invites Implementations of CSS Grid Layout Module Level 1

The CSS Working Group invites implementation of the Candidate Recommendation of CSS Grid Layout Module Level 1. This CSS module defines a two-dimensional grid-based layout system, optimized for user interface design. In the grid layout model, the children of a grid container can be positioned into arbitrary slots in a predefined flexible or fixed-size layout grid. CSS is a language for describing the rendering of structured documents (such as HTML and XML) on screen, on paper, in speech, etc.