External Compatibility Functions ​

External compatibility is needed not merely for data exchange. It performs several concrete functions in the Realith architecture.

1. Correlation of external data with the Realith object model ​

External data must be translated into a form correlatable with object, structure, relations, and canonical current state.

This means compatibility operates not at the level of simple field copying, but at the level of semantic correlation with the internal model.

2. Linking external objects to internal objects ​

Realith must be able to fix that an external object, record, document, or signal correlates with an internal network object.

This linkage must not remain only in the memory of an individual application. Otherwise, coordination value again disappears into local reconstruction.

3. Import of confirmations and materials significant for verification ​

In the external environment, documents, confirmations, and other materials often arise that matter for further coordination. The compatibility layer must be able to bring them into the network as candidate material for internal modeling and verification, rather than only as arbitrary attachments.

4. Export of canonical current state or of its verifiable representation ​

The following may be exported externally:

• canonical current state itself in an admissible form;
• or its verifiable representation;
• or a limited external outcome sufficient for external reconciliation.

This is especially important where the external environment must not see the full internal contour, but must receive a verifiable result.

But the compatibility section does not define the network artifact of canonization itself. It works only with its external derivative form.

5. Practical integration through interfaces, adapters, and gateways ​

Compatibility must be operationally workable. That is why it is expressed through:

• APIs;
• adapters;
• gateways;
• compatible contract surfaces;
• other forms of coordinated external access.

What does not follow from this ​

From the existence of a compatibility layer it does not follow that the external format becomes primary. It remains derivative with respect to the network's internal canon.