Twinning Medieval Stained Glass – An Interdisciplinary Data Integration in Cultural Heritage

Twinning Medieval Stained Glass An Interdisciplinary Data Integration in Cultural Heritage Gestaltung: Sarah Pittroff , Akademie der Wissenschaft en und der Literatur | Mainz, CC BY 4.0 Contact sarah.pittr[email protected], https://nfdi4culture.de, [email protected] Heritage trifft Hightech – Denkmalpflege und moderne Glastechnologie im Gespräch – Ein Workshop der FRIAS-Projektgruppe GlassAge – 20.-21.11.2025 Alexandra Büttner�,�, Sarah Pittroff�,�, Jonatan Jalle Steller�,�, Michael Burger�,�, Thomas Koprucki�,�, Marco Reidelbach�,�, Linnaea Söhn�,�, Karsten Tabelow�,�, Chris Eberl�,�, Anita Schöbel�,�, Torsten Schrade�,� 1 Fraunhofer-Institut für Technound Wirtschaftsmathematik ITWM, Germany, 2 Fraunhofer-Institut für Werkstoffmechanik IWM, Germany, 3 Akademie der Wissenschaften und der Literatur | Mainz, Germany, 4 Weierstraß-Institut, Germany, 5 Zuse-Institut Berlin, Germany, 6 NFDI4Culture, 7 MaRDI, 8 NFDI-MatWerk Fig. 4: Layers of the NFDIcore ontology including BFO as its upper-level ontology and multiple domain-specifi c modules. Creator: Tabea Tietz. This work is funded by the DFG (German Research Foundation) under the project numbers 441958017 (NFDI4Culture), 460135501 (MaRDI) and 460247524 (NFDI-MatWerk) Medieval Stained Glass as a Data-Rich Use Case Ontology and Semantic Modelling for Interdisciplinary Data Enriching Existing Art Historical Data The transition from fragmented, discipline-bound data practices to an integrated digital research environment is both a technical and interdisciplinary challenge. By aligning efforts in semantic modelling, analytical computation, and domain-specific knowledge, we move closer to a sustainable infrastructure for studying cultural heritage in its full material and symbolic richness. The creation of digital twins – enriched through Support semantic interoperability: • align data modelling efforts using the NFDIcore Ontology (NFDIcore) • among domain-specific ontology modules NFDI4Culture Ontology (CTO) and the MatWerk Ontology (MWO) • focus on quick data retrieval and interdisciplinary alignment • framework allows for logical reasoning across data domains where: • CTO is responsible for interconnecting research data on individual cultural artefacts, their locations, creators, and events associated with them • MWO provides ways to express materials, measurements, and workflows • MaRDI Ontology allows for the expression of mathematical models, research problems, and computational tasks in knowledge graphs. The digital image archive of the Coprus Vitrearum Medii Aevi Germany: • 9,000 high-quality TIFF image files plus JPEG derivatives • annotated using a standardised metadata scheme of 50 properties and • enriched with authority data: • temporal metadata (ISO 8601) • iconographic data (Iconclass) • 1,100 buildings (with geographic coordinates, GeoNames, GND, VIAF, Wikidata) • 2,000 people or workshops (GND, VIAF, Wikidata) • span from the 11th to the 16th century • public API • images licensed under CC BY-NC 4.0 and the metadata under CC0 The project seeks to develop FAIR-compliant datasets and semantic tools, implement reproducible, software-assisted analytical methods, and establish sustainable infrastructures within each participating community. These infrastructures will adhere to the principles of the National Research Data Infrastructure (NFDI) while fostering interdisciplinary connectivity. By bringing together diverse disciplinary approaches, the project enables a richer understanding of cultural heritage through the integration of shared data and expertise. I NFDI4Culture • consolidating available information into a unified entry: • condition reports, workshop affiliations, stylistic analysis, and technological context • Key metadata points, such as standard materials, conservation schemas, and artistic techniques can be extracted II NFDI-MatWerk • analytical techniques that reveal the physical and chemical properties of stained glass • insights into composition, surface characteristics, and structural changes, contributing to provenance research and conservation III MaRDI • modelling geometric structures • identifying patterns through computational analysis • enabling new methods for documentation and digital classification correlations, pattern recognition, and semantic linking – promises not only to preserve artefacts digitally, but also to unlock easier access to and new forms of knowledge and interdisciplinary collaboration. As a next step for the endeavour, community review and critical engagement are essential to refine the approach and to identify conceptual or technical gaps. Such collective feedback will strengthen the foundation for future development and ensure broader relevance across disciplines. Abb 1: Efeuornament in Schuppenform Freiburg im Breisgau, Forschungszentrum des CVMA (um 1260/70) CVMA Band II,2; Fig. 803 Foto: Ulrich Engert, CVMA Freiburg, CC BY-NC 4.0 Permalink: https://corpusvitrearum.de/id/F975 Abb 2: Kopfscheibe aus Langhausfenster nI Freiburg im Breisgau, Forschungszentrum des CVMA, Nr. 2. Haina(?), um 1260/70. Fig. 180, S.198 in: Parello, Daniel; Hess, Daniel Die mittelalterlichen Glasmalereien in Marburg und Nordhessen — Corpus vitrearum medii aevi - Deutschland, Band 3,3: Berlin: Deutscher Verlag für Kunstwissenschaft , 2008 https://doi.org/10.11588/diglit.52865#0199 Abb 3: Erhaltungsschema Freiburg Nr. 2. M 1:20 Fig. 179, S.198 in: Parello, Daniel; Hess, Daniel Die mittelalterlichen Glasmalereien in Marburg und Nordhessen — Corpus vitrearum medii aevi - Deutschland, Band 3,3: Berlin: Deutscher Verlag für Kunstwissenschaft , 2008 https://doi.org/10.11588/diglit.52865#0199 Corpus Vitrearum Medii Aevi is the german branch of the Corpus Vitrearum International Corpus Vitrearum Medii Aevi is funden by the scientifi c academies Berlin-Brandenburgische Akademier der Wissenschaften and Akademie der Wissenschaften und der Literatur | Mainz https://corpusvitrearum.de/bildarchiv