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Parent Package: change_control
Class VERSION{Abstract}

Direct Subclassifiers:
       ORIGINAL_VERSION, IMPORTED_VERSION, MERGED_VERSION
One version within a Version container, containing data, create and commit audit trails, and optional attestations.

Attributes
Signature	Optionality	Multiplicity	Constant	Documentation
contribution : OBJECT_REF	1	--		Contribution in which this version was added.
signature : String	0..1	--		OpenPGP digital signature or digest of content committed in this Version.

Attributes from Associations
	Signature	Optionality	Multiplicity	Documentation
	commit_audit : AUDIT_DETAILS	1	--	Audit trail corresponding to the committal of this version to the VERSION_REPOSITORY where it is currently located.
	attestations : Set<ATTESTATION>	0..1	0..*	Set of attestations relating to this version.
	data : T	0..1	--	The data being versioned.

Template Parameters
Name	Type	Default Value
T

Operations
Signature	Constraints	Documentation
canonical_form() : String
data() : T
is_branch() : Boolean
lifecycle_state() : DV_CODED_TEXT
owner_id() : HIER_OBJECT_ID
preceding_version_uid() : OBJECT_VERSION_ID
uid() : OBJECT_VERSION_ID

Constraints
Name	Expression
Contribution_valid	inv: contribution <> Void and contribution.type.is_equal('CONTRIBUTION')
Data_valid	inv: data <> Void
Uid_valid	inv: uid <> Void
Owner_id_valid	inv: owner_id <> Void and owner_id.value.is_equal(uid.object_id.value)
Lifecycle_state_valid	inv: lifecycle_state <> Void and terminology( Term_id_openehr). codes_for_group_name(Group_id_version_lifecycle_state, 'en').has(lifecycle_state.defining_code)
Commit_audit_valid	inv: commit_audit <> Void
Create_audit_valid	inv: create_audit <> Void and create_audit = commit_audit
Preceding_version_uid_validity	inv: uid.version_tree_id.is_first xor preceding_version_uid <> Void