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📢 Important Update: LINDAS is undergoing a major infrastructure migration to LINDASnext. The current Stardog-based system is being replaced with GraphDB EE. New contracts have been awarded in two lots for the period 2025-2034: Lot 1 (Infrastructure) to Cognizone and Lot 2 (Application Development) to Liip, Zazuko, and Adnovum with their respective partners. Services remain operational during transition. See LINDASnext for details.

LINDAS

LINDAS (Linked Data Services) is the central linked data platform of the Swiss federal administration, operated by the Swiss Federal Archives (SFA) since 2019.

Overview

LINDAS hosts and publishes Swiss open government data as RDF using W3C standards. It provides the infrastructure and tools that enable data publishers to convert their datasets into RDF format and make them accessible via SPARQL endpoints.

At the center of data storage is the triplestore (graph database), which serves as the core of the LINDAS system. Within the Swiss federal administration's Linked Data ecosystem, there are three specialized triplestores: LINDAS operated by the Federal Archives as a topic-independent store, Swisstopo for geographic data, and the Federal Chancellery (Fedlex) for legislative data. Each triplestore has its own SPARQL endpoint and serves specific domain requirements, while LINDAS serves as a generic platform for the federal administration.

Since its launch in 2019, LINDAS has grown to encompass hundreds of millions of triples. The platform runs on Kubernetes infrastructure hosted on Exoscale and uses Stardog as its triplestore technology, providing SPARQL as its primary query language for complex data retrieval and analysis across interconnected government datasets.

Swiss Federal Administration Triplestores

Name	Operator	Domain	URL	SPARQL Endpoint	Technology
LINDAS	Swiss Federal Archives	Generic, topic-independent	https://ld.admin.ch	https://ld.admin.ch/sparql	Stardog
Swisstopo	Swisstopo	Geographic data	https://geo.ld.admin.ch	https://geo.ld.admin.ch/sparql	Fuseki
Fedlex	Federal Chancellery	Legislative data	https://fedlex.data.admin.ch	https://fedlex.data.admin.ch/sparqlendpoint	Virtuoso

Wiki Navigation

📖 General Documentation

• Architecture - Technical overview and data flow
• Use Cases - Concrete applications in administration
• Technical Components - All platform components and infrastructure
• Data Integration into LINDAS
• Data Validation - Based on SHACL
• Graylog Guide - Centralized logging platform for LINDAS

🔗 Dependencies & Architecture

• Ecosystem Dependencies Overview - Complete dependency analysis and statistics
• Inter-Component Dependencies - How LINDAS components depend on each other
• External NPM Dependencies - 200+ external packages categorized and analyzed
• Legacy Dependencies Analysis - Technical debt, deprecated packages, and upgrade recommendations

🚀 Migration & Evolution

• LINDASnext - 🔥 Current Migration: Stardog → GraphDB EE
• LINDASnext Environments

Quick Links

Service Access

• Production: lindas.admin.ch | ld.admin.ch
• SPARQL UI: ld.admin.ch/sparql | ld.admin.ch/query
• Cube Creator: cube-creator.lindas.admin.ch (CH-LOGIN required)
• Visualize: visualize.admin.ch
• Visualize Repository: Visualize GitHub Repository
• Visualize Documentation: Visualize Documentation
• Graph Explorer: ld.admin.ch/graph-explorer/
• GitLab: gitlab.ldbar.ch (CI/CD pipelines and issue management)
• Status: status.ldbar.ch

Related Federal Triplestores

• Swisstopo: geo.ld.admin.ch | SPARQL
• Fedlex: fedlex.data.admin.ch | SPARQL

Support

• Cube Creator Wiki: GitHub Wiki
• LINDAS Support: support.lindas@bar.admin.ch (for CH-LOGIN access to Cube Creator)
• VSHN Technical Documentation: Confluence (access required)
• LINDASnext Project Management: Confluence (access required)
• LINDASnext Project Website: SharePoint (access required)

Key Tools Overview

Cube Creator - Converts tabular data (CSV) into RDF cubes with metadata enrichment. Requires CH-LOGIN access via support.lindas@bar.admin.ch.

GitLab - Houses CI/CD pipelines for data publishing to LINDAS and manages issues for various datasets.

Graph Explorer - Explores and visualizes LINDAS data and their connections to other datasets graphically.

Visualize - Creates interactive visualizations from RDF cube data with minimal technical knowledge required.