TPAC/2026/Demos and Group updates

An opportunity to discover what W3C groups are working on and how that works intersect with other Web technologies.
The group updates and demos are provided as pre-recorded videos. These videos will be shared online from the TPAC 2026 website ("Videos") and published via W3C's YT channel (@W3COfficial).

You might find this 2024 WebDX group update video by Patrick Brosset helpful as a reference for the style and overall approach.

2026 Timeline

NEW DEADLINE! BEFORE SEPTEMBER 15th: Please indicate the name(s) of the volunteer(s) to mcf@w3.org

Please include a title, a description, the W3C group behind the relevant technical work, and the contact person responsible for getting the video recorded.

BEFORE SEPTEMBER 30th: Please send the recorded videos to mcf@w3.org
SEPTEMBER 30 - OCTOBER 20: Videos published on the TPAC 2026 videos webpage and on W3C's YT channel.

Confirmed Group Updates and/or Demos

CONFIRMED DEMOS 2026

W3C Internationalization Activity Update
- by Fuqiao Xue, W3C I18N WG
- Description: In this TPAC 2026 update, the W3C Internationalization Working Group highlights its latest work to make the Web more inclusive worldwide. Discover our draft explainer for Message Resources and progress on more precise HTML ruby markup. We also explore the complex relationship between ruby annotations and text-to-speech accessibility, like our user requirements document for Ruby TTS. Beyond specifications, we share updates to Language Enablement resources, articles, translations, and guidance for specification developers. You’ll also hear about new automated quality checks, and our upcoming videos.
Web of Things Recap for TPAC 2026
- by Ege Korkan, WoT CG
- Description: This past year, the Web of Things at W3C took significant steps forward thanks to a variety of contributors from different groups. In this video, we share some of the highlights with the wider web and IoT community. Watch to learn about new features in the standards, branding, and adoption in the community.
Keeping track of web platform features
- by Patrick Brosset, WebDX CG
- Description: A quick update on the web-features project and all the ways in which various web-related data sources are now interconnected thanks to a single source of truth that's made for web developers.
Accessibility Compat Data project
- by Lola Odelola, Documentation CG
- Description: Accessibility Compatibility Data (ACD) made significant progress in 2026, exploring how accessibility support data can be integrated into developer tools such as the Browser Compatibility Data (BCD) and Baseline. The project developed a proof of concept using Web Platform Tests and ARIA-AT data. The team is now working on filling data gaps and defining how support statuses should be computed, with a TPAC 2026 breakout inviting community input.
EPUB 3.4 new feature: Roll
- by Shinya Takami, W3C Publishing Maintenance WG
- Description: A demo video of the new EPUB feature, roll layout. A portrait-oriented mobile device displays the comic I’m a Villainess to be Poisoned, so why am I being adored? by Isana Mizuki and Itoshiki. The user scrolls through the comic, with panels moving seamlessly.
OGC Testbed-21 GIMI: Dash Cam Video Analysis
- Rob Smith, W3C Spatio-temporal Data on the Web WG
- Description: Demonstration of road maintenance and collision monitoring use cases using accelerometer metadata to quickly access relevant video content in dash cam footage with WebVMT in a web browser, including binary and text metadata formats, HTML cue integration and multi-sensor aggregation.
The Semantic Sensor Network ontology: SOSA and SSN (Episode 1)
- By Maxime Lefrançois, W3C Spatio-temporal Data on the Web WG
- The Semantic Sensor Network Ontology defines a vocabulary for describing actuators, sensors, observations and their environment. The core is made up of the SOSA modules (for Sensor, Observation, Sample, and Actuator). This video is the introduction to a series of videos (currently under construction) that explain the modules of the specification.
The SOSA observation module (Episode 2)
- By Maxime Lefrançois, W3C Spatio-temporal Data on the Web WG
- The observations module of the SSN specification is made up of a handful of properties to completely and unambiguously describe any kind of measurement.
SOSA sampling module (Episode 3)
- By Maxime Lefrançois, W3C Spatio-temporal Data on the Web WG
- The sampling module of the SSN specification defines properties to describe a sample. A sample is typically something that represents something larger and that is measured because the larger thing cannot be measured directly.

Best Practices for Recording Videos

Plan the content

identify the story
- demos: what problem is being newly solved? what impact can we expect from the proposed solution?
- group updates: what is the group? what impact does it seek to have and is actually having on the Web?
make it accessible - follow the accessibility considerations when planning, scripting, storyboarding well before hitting the record button
plan for a short video - aim for 2 minutes if possible for a demo, 3 minutes for a group update
- think of the demo as a teaser for a deeper technical dive, NOT the deep technical dive itself
- if part of the process being demonstrated is slow or a bit long, plan on showing an abbreviated or accelerated version of the process
write up what you plan to say, keeping acronyms and jargon to a minimum, and explain it when using it
- demos: show and tell - plan on describing orally what is happening in the demo
if you plan on showing code, prepare it so that it can be shown with a large font and clear contrasted colors, and focused on the most relevant code
if you plan on showing slides, see guidance on preparing them
end the script with indications on where to follow up for people interested in more details or in getting involved

Test your setup

ensure your audio setup is clear and crisp
if you plan on video-recording yourself speaking:
- ensure your face will be well-lit, with the camera at eye level
- ensure the background in front of which you'll record yourself is not distracting
- memorize as much of your script as possible, or use a teleprompter to read your script while looking at the camera
- if recording from a mobile device, record in landscape mode

Shooting the video

Speak clearly and slowly. No need to rush.
especially if reading from your script, make sure to keep your tone lively - imagine you're telling an exciting story to a colleague
if you're recording a screen, remove any distracting elements (irrelevant windows and tabs, notifications); if possible, zoom and highlight the most relevant elements
If you're video-recording yourself speaking, leave a few seconds before and after you start speaking in recording mode to allow for editing

Submitting the video

Once you're happy with the resulting video, please share it with mcf@w3.org using one of the on-line systems for sharing large files (e.g. Wormhole, Google Drive, Smash, etc.)
If you read from a script, please share it with us as it will help with captioning.
If you screen-recorded slides, please share them as well.