# 6. Architecture

- [6-1. Architecture](/sinra/6.-architecture/6-1.-architecture.md)
- [6-2. Information held by the SINRA system](/sinra/6.-architecture/6-2.-information-held-by-the-sinra-system.md)
- [6-3. Information held by the CONTRACT](/sinra/6.-architecture/6-3.-information-held-by-the-contract.md)
- [6-4. metadata specification](/sinra/6.-architecture/6-4.-metadata-specification.md)
- [6-5. control panel](/sinra/6.-architecture/6-5.-control-panel.md)
- [6-6. Security measures for SINRA systems](/sinra/6.-architecture/6-6.-security-measures-for-sinra-systems.md)