Federal States

Scaling to the federal state level enables state-wide Spatial Data Infrastructures.

Pilot: North Rhine-Westphalia

Why NRW?

• Cologne and Bonn already active
• Largest federal state (population)
• Strong OpenData initiatives
• open.nrw as existing state portal

Vision NRW 2027:

• 50+ municipalities in NRW use p2d2
• State-wide cemetery database
• Integration with GEOportal.NRW

Schleswig-Holstein

Why Schleswig-Holstein?

• Progressive E-Government law
• Strong commitment to Open Source
• Manageable size for pilot project

Special features:

• Coast-specific categories (beaches, harbors)
• Tourism focus (landmarks)
• Border region (DK/DE)

State Spatial Data Infrastructures

GDI-DE Integration

p2d2 as a component of GDI-DE:

┌─────────────────────┐
│      GDI-DE         │
│ (Federal level)     │
└──────────┬──────────┘
           │
    ┌──────┴──────┐
    │             │
┌───▼───┐    ┌────▼───┐
│GDI-NRW│    │GDI-SH  │
└───┬───┘    └────┬───┘
    │             │
┌───▼────────────▼───┐
│      p2d2          │
│  (Municipal level) │
└────────────────────┘

Metadata Harmonization

• INSPIRE-compliant metadata
• GeoNetwork integration
• CSW interface

State-specific Adaptations

Data Models

Each federal state can have its own categories:

• Bavaria: Beer gardens, folk festivals
• Schleswig-Holstein: Beaches, lighthouses
• Brandenburg: Lakes, nature parks

Legal Requirements

• Data protection: State-specific regulations
• Licensing: State data licenses
• Archiving: State archive laws

Federation

State Instances

Each federal state can operate its own p2d2 instance:

┌──────────┐  ┌──────────┐  ┌──────────┐
│ p2d2-NRW │  │ p2d2-SH  │  │ p2d2-BY  │
└─────┬────┘  └─────┬────┘  └─────┬────┘
      │             │             │
      └──────┬──────┴──────┬──────┘
             │             │
        ┌────▼─────────────▼────┐
        │ Federation Protocol  │
        └──────────────────────┘

Cross-State Queries

# SPARQL query across all federal states
SELECT ?name ?bundesland WHERE {
  ?friedhof a :Friedhof ;
            :name ?name ;
            :bundesland ?bundesland .
  FILTER (?bundesland IN ("NRW", "SH", "BY"))
}

Funding

State Funding

• Digitalization funds: State funds for IT projects
• EFRE: EU regional funds
• Model projects: Research funding

Inter-municipal Cooperation

• IT special purpose associations: Shared infrastructure
• Shared services: Cost sharing

Governance

State Coordination Office

• Contact person for municipalities
• Training and support
• Best practice exchange

Municipal Working Group

• Representatives of all participating municipalities
• Quarterly meetings
• Decisions on further development

Federal State interested?

We support states in building their own p2d2 infrastructures!