Cocoda4TS4NFDI

Jakob Voß

2025-07-14

Cocoda Introduction

Example Mappings

• GND https://d-nb.info/gnd/4062527-8 Venus (Planet)
• = Wikidata http://www.wikidata.org/entity/Q313 Venus
• \(\approx\) DDC http://dewey.info/class/523.42/e23/ Venus
• < BK http://uri.gbv.de/terminology/bk/39.53 Planeten

Cocoda in a nutshell

• Web application to manage mappings
• Mappings between entities from terminologies
• Current code base developed since 2018
• Client side (static files)
• Based on JSKOS data format and Vue

Cocoda Links

• https://coli-conc.gbv.de/cocoda/
• https://coli-conc.gbv.de/cocoda/nfdi4objects/
• https://coli-conc.gbv.de/cocoda/ts4nfdi/
• https://doi.org/10.5446/69732 Screencast

Functionality

• Browse and search terminologies
• Login via ORCID, GitHub…
• Create, edit, delete mappings
• Organize mappings in concordances
• Search mappings
• Review mappings

Missing or limited functionality

• Entity sets (only favorite concepts and static concept lists)
• Terminology collections (hard-coded in config files)
• Upload SSSOM (but converter exists)
• Access via MOD-API, OLS, OntoPortal…
• Special treatment of ontologies (?)

Behind the scenes

Core Concepts

• Cocoda: web application
• jskos-server: database software to store mappings, concordances, terminologies, collections, reviews…
• Mapping Registry: main mapping instance of jskos-server
• BARTOC: terminology registry
• login-server: AAI to delegate to IdPs
• cocoda-sdk: programming library
  • like a client-side API Gateway

Services Architecture

graph TD
  Cocoda --get-token-from --> login-server
  Cocoda --mappings etc. --> jskos-server
  jskos-server --> login-server
  login-server --> Identity-providers
  Cocoda --lookup --> BARTOC
  Cocoda --config-file --> Terminology-APIs
  BARTOC --references --> Terminology-APIs
  Terminology-APIs --terminology data --> Cocoda

Terminology configuration in BARTOC

…

Use the source, Luke!

• JSKOS Server https://github.com/gbv/jskos-server
• Login Server https://github.com/gbv/login-server
• Cocoda SDK https://github.com/gbv/cocoda-sdk
• Browser-Dev-Tools and API links in Cocoda