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AUDIT_DETAILS.system_id‏ semantics not well defined

Description

The definition of the AUDIT_DETAILS.system_id is not 100% clear: "Identity of the system where the change was committed. Ideally this is a machine- and human-processable identifier, but it may not be".

Some implementers use the system_id of the commit service/server (a technical id), others use this as a system id more at a logical / organizational level (for multi-tenant systems maybe the same commit service / server is used as backend of different systems and each of those systems client + backend have a different system id).
In a distributed system, maybe a set of clients + backend servers have only one system id, like in a nation-wide or regional EHR system.
Also about the id itself, Thomas mentioned that was thought to be something like a URI, but a lot of implementations are using UIDs.

So, the definition leads to different interpretations and identification schemas. It might be good to clarify the specification and define a specific id schema like using just URIs or UIDs or something else. I would prefer to use random UUIDs because those can be generated in a distributed way and URIs might need some level of coordination / centralization.

For context: http://lists.openehr.org/pipermail/openehr-technical_lists.openehr.org/2014-August/008468.html

Environment

None

Status

Reporter

Pablo Pazos

Components

Affects versions

RM Release 1.0.2

Priority

Minor