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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Long-term archiving of digital edition data in the DaSCH Service Platform (DSP)</title>
<!-- Dublin Core tags for better indexing, for example, Zotero connector -->
<meta name="DC.Title" content="Modelling Data for Long-Term Archiving in the Swiss DaSCH Service Platform (DSP)">
<meta name="DC.Description" content="The Swiss National Data and Service Center for the Humanities (DaSCH) is a national infrastructure dedicated to the long-term archiving and accessibility of research data in the humanities. DaSCH serves as an open data repository and a simple virtual research environment. It focuses on ensuring the archival integrity and direct accessibility of data, following Open Research Data (ORD) and FAIR principles.
At the heart of DaSCH is the DaSCH Service Platform (DSP), particularly suited for handling text data and bitstream data (images, audio, and video) from various humanities disciplines. The platform supports qualitative data and offers access control to address copyright and other sensitive data concerns, while advocating for maximum openness. One of the key features of DSP is its ability to assign persistent identifiers (ARKs) at the object level, enabling precise citation of individual data items.
The foundation of DSP's data modelling flexibility lies in its use of RDF and ontologies. Each project defines its own ontology, extending the common knora-base. This allows the data model to be tailored precisely to the research subject matter. Consequently, models can vary significantly in complexity. A project might choose a relatively simple model, perhaps primarily archiving XML files as digital objects with basic metadata. Conversely, another project might implement a highly complex model, representing the intricate structure of, for example, a scholarly edition, including detailed registers of persons, places, and concepts, with extensive internal linking between these entities and the primary source materials.
In this presentation, I will address how researchers can approach data modelling for long-term archiving using DSP. I will discuss the conceptual foundations of the platform's ontology-based architecture and explain how tools such as the DSP ontology editor and DSP-Tools support the creation, validation, and management of custom data models. Drawing on examples from existing projects, I will illustrate how different modelling strategies can be adapted to diverse research needs.">
<meta name="DC.Creator" content="José Luis Losada Palenzuela" />
<meta name="DC.Date" content="2025-05-28" />
<meta name="DC.Rights" content="Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)" />
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<meta name="DC.publisher" content="DaSCH">
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<body>
<div class="reveal">
<!-- Any section element inside of this container is displayed as a slide -->
<div class="slides">
<section> <!-- Cover -->
<h2>Modelling Data for Long-Term Archiving in the Swiss DaSCH Service Platform (DSP)</h2> <br>
<h4>José Luis Losada Palenzuela</h4>
<h4>DaSCH / RISE (Universität Basel)</h4>
<br>
<h4 style="color: grey; font-size: large;">Digital Humanities - Innovation with Advanced Computing, Évora, 28.05.2025</h4>
</section>
<section data-markdown> <!-- ToC -->
<textarea data-template>
## ToC
- DaSCH Overview
- DSP (DaSCH Service Platform) Overview
- Data Models
- Granularity
- Examples (editions)
- How to archive in DaSCH
</textarea>
</section>
<section data-markdown> <!-- -->
<textarea data-template>
## What is DaSCH?
- DaSCH - Swiss National Data and Service Center for the Humanities.
- National infrastructure for Humanities’ research data.
- Open data repository and virtual research environment.
- Repository for long-term preservation and reuse of research data.
- Mainly funded by SNSF (Swiss National Science Foundation)
- in-kind contributions of University of Basel (host university)
</textarea>
</section>
<section data-markdown> <!-- Preservation -->
<textarea data-template>
## Preservation
<div class="cita">"Common myths about the digital environment are that it is stable, even archival (e.g. permanent) and that it is “immaterial” (e.g. not instantiated in analogue reality). Every actual engagement with digital technology demonstrates the opposite." <span class="fuente">[Drucker 2014: 9]</span></div>
</textarea>
</section>
<section> <!--Lost data map-->
<img src="imagenes/FranziszkaMau_CCBYSA_2024.jpg"/>
<span class="fuente"><a href="https://www.FranziMachtDas.de">“Lost Data Map”, Franziska Mau, CC BY-SA.</a></span>
</section>
<section data-markdown> <!-- Preservation -->
<textarea data-template>
## Best Practices
- File Formats: DaSCH accepts mostly durable formats based on open standards and may convert submitted files if needed.
- Regular Review: ongoing management including migration and integrity checks.
- Data Curation: DaSCH aims for high-quality curated datasets.
</textarea>
</section>
<section data-markdown> <!-- -->
<textarea data-template>
## Characteristics of DSP
#### DaSCH Service Platform (DSP)
- FAIR repository: direct accessibility and searchability of the data: live archive.
- Persistent identifiers (ARKs) not only at dataset level but also at object level.
- Permissions not only at dataset level but also at object level.
- Focus on text data and bitstream data.
- Editing of data possible at any time.
- Data display and search in generic web application: [DSP-APP](https://app.dasch.swiss)
</textarea>
</section>
<section data-markdown data-menu-title="DSP example"> <!-- -->
<textarea data-template>
<img style="width: 80%; box-shadow: none;" src="imagenes/dasch_incunabula.png"/>
<br>
<span class="fuente"><a href="https://ark.dasch.swiss/ark:/72163/1/0803/f6pSYFILX1OT1uqXBXotnA8">https://ark.dasch.swiss/ark:/72163/1/0803/f6pSYFILX1OT1uqXBXotnA8</a></span>
</textarea>
</section>
<section data-markdown> <!-- -->
<textarea data-template>
## Characteristics of DSP
#### DaSCH Service Platform (DSP)
- Use of a triplestore: data is stored in the form of graphs.
- RDF (Resource Description Framework) is used to describe relations.
- Queries are made using a subset of the SPARQL query language (Gravsearch)
- An IIIF media server enables the display of images.
- Providing access to data through APIs.
</textarea>
</section>
<section data-markdown> <!-- 8 -->
<textarea data-template>
## DSP Specific Requirements
#### How data is represented in DSP
- RDF-based representation.
- DSP Knora Data Model + Project Data Model.
- **Data Model** (classes and properties).
</textarea>
</section>
<section data-markdown> <!-- 7 -->
<textarea data-template>
## Digital Scholarly Editions
- TEI-XML's role as the core of digital scholarly editions.
- Reductionist, as it omits visualization and publication.
- Every DSE has implicit or explicit a data model.
</textarea>
</section>
<section data-menu-title="XML example" data-markdown> <!-- Data Models -->
<textarea data-template>
<img style="width: 85%; box-shadow: none;" src="imagenes/dasch_letter_xml.png"/>
</textarea>
</section>
<section data-menu-title="data model" data-markdown data-transition="none-out"> <!-- 9 -->
<textarea data-template>
<img style="width: 50%; box-shadow: none;" src="imagenes/dasch_datamodel_1.png"/>
</textarea>
</section>
<section data-menu-title="Simple Data Model (image)" data-markdown data-transition="none-in"> <!-- Data Models -->
<textarea data-template>
<img style="width: 50%; box-shadow: none;" src="imagenes/dasch_datamodel_2.png"/>
</textarea>
</section>
<section data-markdown> <!-- DaSCH -->
<textarea data-template>
## Minimal Data Model
- Archiving the XML files with the desired basic metadata
- What do I have:
- Data export for external tools and systems: xml download.
- Direct citacion at object level via ARK.
- Versioning if decided to track the versions.
</textarea>
</section>
<section data-menu-title="XML download" data-markdown> <!-- Data Models -->
<textarea data-template>
<img style="width: 70%; box-shadow: none;" src="imagenes/dasch_xml.png"/>
</textarea>
</section>
<section data-menu-title="Complex data model" data-markdown> <!-- Data Models -->
<textarea data-template>
<img style="width: 60%; box-shadow: none;" src="imagenes/dasch_datamodel_3.png"/>
</textarea>
</section>
<section data-menu-title="DSP example" data-markdown> <!-- Data Models -->
<textarea data-template>
<img style="width: 90%; box-shadow: none;" src="imagenes/dasch_gotthelf.png"/>
</textarea>
</section>
<section data-menu-title="DSP example Transcription" data-markdown> <!-- Data Models -->
<textarea data-template>
<img style="width: 90%; box-shadow: none;" src="imagenes/dasch_letter_transcription.png"/>
</textarea>
</section>
<!------------------------ CONCLUSIONS ------------------------------>
<section data-menu-title="How to" data-markdown>
<textarea data-template>
## How to do it
#### GUI via DSP-APP
- DSP-APP in a browser (manually)
- Simple virtual research environment
<br>
<br>
#### Mass import via DSP-TOOLS
- Set of python scripts
</textarea>
</section>
<section data-menu-title="Two ways of archive data" data-markdown> <!-- Data Models -->
<textarea data-template>
### Two ways of archive data in DSP
<img style="width: 90%; box-shadow: none;" src="imagenes/dasch_diagram_do-it.png"/>
</textarea>
</section>
<section data-menu-title="Ontology GUI" data-markdown> <!-- Data Models -->
<textarea data-template>
<img style="width: 100%; box-shadow: none;" src="imagenes/dasch_onto_editor.png"/>
</textarea>
</section>
<section data-menu-title="Ontology Extended" data-markdown> <!-- Data Models -->
<textarea data-template>
<img style="width: 80%; box-shadow: none;" src="imagenes/dasch_ontology_max.png"/>
</textarea>
</section>
<section data-menu-title="DaSCH Projects" data-markdown>
<textarea data-template>
### Browse [DaSCH](https://app.dasch.swiss) projects
<img style="width: 80%; box-shadow: none;" src="imagenes/dasch_overview.png" alt="DaSCH">
</textarea>
</section>
<section data-menu-title="DaSCH links" data-markdown>
<textarea data-template>
Search for projects at DaSCH Metadata Browser
<br>
https://meta.dasch.swiss
<br>
<br>
Do You Want To Know More?
<br>
https://www.dasch.swiss/our-manuals
<br>
<br>
DaSCH Service Platform Documentation
<br>
https://docs.dasch.swiss
<br>
<br>
DSP source code and documentation
<br>
https://github.com/dasch-swiss
<a style = "border-bottom: none" href="http://creativecommons.org/licenses/by-sa/4.0/"><img class="licencia" alt="License Creative Commons" src="https://i.creativecommons.org/l/by-sa/4.0/80x15.png"></a>
</textarea>
</section>
<section data-menu-title="File Format" data-markdown style="font-size: 70%">
<textarea data-template>
## File Format
| Category | Accepted format | Converted during ingest? |
|--------------|-----------------------------------------------------|----------------------------------------------|
| Text, XML | ODD, RNG, TXT, XML, XSD, XSL | No |
| Tables | CSV, XLS, XLSX | No |
| 2D Images | JPG, JPEG, JP2, PNG, TIF, TIFF | Yes, converted to JPEG 2000 |
| Audio | MPEG (MP3), WAV | No |
| Video | MP4 | No |
| Office | PDF, DOC, DOCX, PPT, PPTX | No |
| Archives | ZIP, TAR, GZ, Z, TAR.GZ, TGZ, GZIP, 7Z | No |
</textarea>
</section>
<section data-menu-title="Knora representation class" data-markdown style="font-size: 70%">
<textarea data-template>
<img style="width: 90%; box-shadow: none;" src="imagenes/dasch_knora_representation.png"/>
</textarea>
</section>
</div>
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