OCORA (Open CCS On-Board Reference Architecture) is a collaboration of major Railway Undertakings regarding the European Signalling System ERTMS.

OCORA puts in common the extensive return of experience of the past 20 years to recommend improvements on ERTMS.

https://ocora.realite-augmentee.io
OCORA believes that a standard on-board architecture with standard modules and interfaces is the driving key to ease:
- Reduce the total cost of ownwership of about ~30% on the life cycle
- The deployment in shorter delays
- Introduction of new innovative services
- Increase the number of suppliers and the market share for industry

The EC (European Community) has setup a 10 year engineering program named ERJU (Europe's Rail Joint Undertaking) to ease the deployment of ERTMS.

The OCORA concepts of modularity is one of the corner stones of the strategy of EC to reach business objectives of Europe.

Let's review the core and optional customer's services brought by OCORA's and the roadmap approach of the solution.