Despite the growing recognition of 3D models as essential digital heritage assets, documentation practices remain inconsistent. Foundational frameworks such as the London Charter (2009) and the Seville Principles (2017) highlight the importance of transparency and authenticity, yet practical implementation through metadata and paradata is still fragmented.
The DFG 3D-viewer project has taken significant steps toward addressing these issues, organising earlier workshops on metadata schemas (Mainz, 2022), core schema development (Munich, 2023), and standardisation challenges (Bielefeld, 2025). Now, we continue this ongoing discussion with the fourth edition, which will take place as part of CHNT30 in Vienna — bringing together experts and practitioners to advance the dialogue on standardising metadata for 3D models of cultural heritage.
November 4, 2025 | 14:40 – 17:00 CET | Hybird | CHNT30 Location is Ahnensaal in the Building of the Bundesdenkmalamt – Federal Monuments Authority Austria, entrance form Hofburg B, 1010 Vienna, Austria. Event will be in hybrid format (on-site + online). The session combines short lightning talks, focused discussions, and a collaborative breakout activity on a shared Miro board.
Key discussion topics include: • Web interoperability of 3D models; • Core metadata schema development; • Use-case-specific documentation recommendations; • Mapping existing 3D content standards; • Standardized terminology and controlled vocabularies.
Registration to the event: → https://forms.gle/uPE4zqNNMni7H2fy7
Program (CET timezone)
14:40 – 14:50 Welcoming, introduction, and overview of previous events
14:50 – 15:00 Ligthing talk by Katherine E. DeVet (Texas Tech University, CS3DP) & Jasmine Clark (Temple University, CS3DP)
15:00 – 15:10 Discussion: From recommendations to implementation. Practises of capturing metadata for 3D cultural heritage. Moderator: Lozana Rossenova (TIB Hannoover, NFDI4Culture)
15:10 – 15:20 Lightning talk by Ronald Haynes (University of Cambridge, IIIF 3D TSG)
15:20 – 15:30 Discussion: Interoperability through metadata — connecting 3D scene descriptions with documentation standards Moderator: Igor Bajena (Hochschule Mainz, DFG 3D-Viewer)
15:30 – 15:40 Lightning talk by Sarah Tournon-Valiente (Bordeaux Montaigne University, Conservatoire National des Données 3D)
15:40 – 15:50 Discussion: Best practises and tools for 3D metadata and paradata capture Moderator: Andreas Noback (TU Darmstadt, NFDI4ING)
15:50 – 16:00 Lightning talk by Sander Münster (University of Jena, Europeana/3DBigDataSpace)
16:00 – 16:10 Discussion: Toward shared standards for 3D aggregation Moderator: Ina Blümel (TIB Hannover, NFDI4Culture)
16:10 – 16:20 Lightning talk by Igor Bajena (Hochschule Mainz, DFG 3D-Viewer)
16:20 – 16:50 Breakout rooms and Miro activity Collaborative session to develop data model and mappings from different user perspectives.
16:50 – 17:00 Closing remarks