# Logical Record Architecture for Health and Social Care
## Discharge Summary Release 0.02

Contents
The content of this release is not comprehensive and is not fully validated and must not be used in live system implementations.
# Reference Model Class: SubversionModelArtefactVersion
A snapshot of a ModelArtefactPackage resource managed by a Subversion version control provider. ## Specializes ## ModelArtefactVersion ## Attributes
Name | Data type | Occurs | Description
--- | --- | --- | ---
firstUpdateRevision | String | 0..1 | The Subversion repository revision number at the time of the first update to this ModelArtefactVersion.
lastUpdateRevision | String | 0..1 | The Subversion repository revision number at the time of the last update to this ModelArtefactVersion.
## Constraints
Type | Name | Specification
--- | --- | ---
No revision for dependency-only change | Invariant | inv: if contentChange = false then firstUpdateRevision.oclIsUndefined() and lastUpdateRevision.oclIsUndefined() else not firstUpdateRevision.oclIsUndefined() and not lastUpdateRevision.oclIsUndefined() endif
## Reference Model Type ##