Specifying the differences with the DALIA Interchange Format (DIF) – Picklists and Controlled Vocabularies for a Knowledge Graph on Open Educational Resources

DALIA Interchange Format(DIF) What is DALIA? DAta LIteracy Alliance: We promote the learning and teaching of Data Literacy by providing a curated supply of open teaching and learning content, empowering everyone to collect, analyze, evaluate, and use data in aFAIR way. https://search.dalia.education https://dalia.education Project Website: •search platform for open educational resources •knowledge graph based •free of charge •federated curation concept Development of the DIF: •provision of a standardized metadata framework for integrating resources into the DALIA platform •ensuring the interoperability of educational resources in the DALIA knowledge graph •collaborative development with the specialist community •consideration of data standards such as LRMI [1], the recommendations for the minimum metadata set of the RDA ETHRD-IG [3] and the Allgemeines Metadatenprofil für Bildungsressourcen (AMB) [5] DIF Publication J. Geiger, P. Steiner, A. A. Desouki und F. Lange, “DALIA Interchange Format”. Zenodo, June 7th, 2024. doi: 10.5281/zenodo.11521029. Specifying the differences with the DALIA Interchange Format (DIF): Picklists and Controlled Vocabularies for a Knowledge Graph on Open Educational Resources References: [1] Barker, Phil and Stuart Sutton (ed). 2022. “LRMI Terms (RDF) 2022-06-14.” https://www.dublincore.org/specifications/lrmi/lrmi_terms/2022 -06-14/. [2] DCMI Usage Board. 2020. DCMI Type Vocabulary. In: DCMI Metadata Terms. https://www.dublincore.org/specifications/dublin-core/dcmiterms/#section-7 [3] Hoebelheinrich, Nancy J. et al. 2022. “Recommendations for a minimal metadata set to aid harmonised discovery of learning resources.” Zenodo. DOI: 10.15497/RDA00073. [4] Library of Congress, The (2025). XML Format Description Documents. https://www.loc.gov/preservation/digital/formats/fddXML.zip. [5] Pohl, Adrian et. al. 2025. “Allgemeines Metadatenprofil für Bildungsressourcen (AMB).” Draft from June 2nd 2025. https://dini-ag-kim.github.io/amb/draft/. Petra C. Steiner, Abdelmoneim Amer Desouki, Jonathan D. Geiger, Henrika M. Hüppe, Marc Fuhrmans Picklists Description elements: •attribute name •picklist item (PI) or controlled vocabulary •description •term IRI or link of source •comment .pdf –File Format | PI PDF (Portable Document Format), developed by Adobe Systems Incorporated, is described by Adobe as a general document representation language. PDF represents formatted, pageoriented documents. These documents may be structured or simple. They may contain text, images, graphics, and other multimedia content, such as video and audio. There is support for annotations, metadata, hypertext links, and bookmarks. Later versions provide additional functionalities, for example, to embed geospatial information within documents that represent maps or other geospatial images, such as satellite photographs. https://www.loc.gov/preservation/digital/formats/fddXML/fdd000030.xml | [4] Jonathan D. Geiger Academy of Sciences and Literature | Mainz [email protected] Abdelmoneim Amer Desouki Technical University of Darmstadt, University and State Library Darmstadt [email protected] Henrika M. Hüppe RWTH Aachen University, Institute of Inorganic Chemistry [email protected]-aachen.de Petra C. Steiner Technical University of Darmstadt, University and State Library Darmstadt [email protected] Audio –Media Type | PI A resource has the media type audio if it mainly consists of aural material. schema:AudioObject, dctypes:Sound | [2] .txt –File Format | PI The txt File Format is plain text consisting of a sequence of character codes, such as ASCII or Unicode. Marc Fuhrmans Technical University of Darmstadt, University and State Library Darmstadt [email protected] Video –Media Type | PI A resource has the media type video if it mainly consists of moving images. schema:VideoObject, dctypes:MovingImage | [2] Code –Media Type | PI A resource has the media type code if it mainly consists of programming code. mo:Code Text –Media Type | PI A resource has the media type text if it mainly consists of written or writing materials. schema:Text, dctypes:Text | [2] Image –Media Type | PI A resource has the media type image if it mainly consists of (a) still image(s). schema:ImageObject, dctypes:StillImage | [2] Presentation –Media Type | PI A resource has the media type presentation if it mainly consists of slides. schema:PresentationDigitalDocument Multipart –Media Type | PI A resource has the media type multipart if it consists of more than one part, each of a different media type. mo:Multipart @daliaeducation.bsky.social @[email protected] Contact us: [email protected]n Ontology:MoDALIA (mo) https://dalia.pages.rwth-aachen.de/dalia-ontology/ Title Link License Authors Media Type Community Discipline Proficiency Level Description Target Group Learning Resource Type File Format Keywords Publication Date Language Related Work Size Version File Format –recommended | 0..n The (technical) file format of the resource. If the resource exists in different formats (e.g. pptx and pdf), all of them should be provided. For non-downloadable resources, e.g. streams, no format can be provided (e.g. YouTube videos). mandatory, recommended, optionalattributes Examples: Attributes of DIF Media Type –recommended | 0..n The general type of data content encoded in a computer file in sense of the modality (text, audio, picture etc.). The media type is to be used for user preferences for the learning style(s). If the resource consists of more than one item with different DOIs, the MediaType is "multipart" and the relations are provided in the field "RelatedWork".