The ARIADNE infrastructure has three layers:
- The Storage Layer allows for storing both content and metadata in several databases.
- The Middle Layer offers persistent management of LOs and metadata through a set of services, such as an identier service for providing unique identiers for LOs.
- The Toolset layer hides protocols and standards for end users in a toolset that e.g. can be used for accessing LOs in the ARIADNE infrastructure.