The registry is based on UML (Unified Modeling Language), so it will be best understood by those familiar with UML. However, the individual items generally have plain text descriptions, and are arranged in a simple hierarchy, so the registry should also be fairly communicative to those without detailed UML knowledge. The organisational structure of the registry, and some of the detailed terms, come from the ISO 14817 standard. Knowledge of this standard is helpful, although much of the knowledge that is required can be found on this site.

For more information on using the Registry please read the following:

• Navigation
• Status Levels
• Harmonisation

From UML Models to System Interfaces

The UML models in the registry are implementation independent. For example one UML model could be implemented both as a relational database and as XML Schemas. When viewing registry contents, users need to bear in mind that they are viewing platform-independent models that define semantics; for full system interface details these models must be combined with platform-specific mappings.

For more information on this and platform-specific mappings available click here.

Registry Structures

The registry provides several top level structures with which to access its content:

Registered Items
The home of all registered items, organised by the registry status level achieved (card, draft, recorded, qualified, preferred)

Core Components
Through harmonisation, explains the similarities and differences between models.

Subject Matter Index
One of the most useful ways to access the registry if you are interested in a particular kind of content, rather than a particular system.

System Interface Index
Use this index if you want to examine a specific system, interface or model.

Functional Index
For users thinking in terms of the function to be performed rather than the subject matter area. This index contains functions from the European ITS framework architecture.