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Report:	General Info | Attributes | Operations | Relations | Constraints

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Parent Package: composition
Class COMPOSITION

LOCATABLE
   |
   +--COMPOSITION
One version in a VERSIONED_COMPOSITION. A composition is considered the unit of modification of the record, the unit of transmission in record extracts, and the unit of attestation by authorising clinicians. In this latter sense, it may be considered equivalent to a signed document.

Attributes
Signature	Optionality	Multiplicity	Constant	Documentation
category : DV_CODED_TEXT	1	--		Indicates what broad category this Composition is belogs to, e.g. “persistent” - of longitudinal validity, “event”, “process” etc.
language : CODE_PHRASE	1	--		Mandatory indicator of the localised language in which this Entry is written. Coded from openEHR Code Set “languages”.
territory : CODE_PHRASE	1	--		Name of territory in which this Composition was written. Coded from openEHR “countries” code set, which is an expression of the ISO 3166 standard.

Attributes from Associations
	Signature	Optionality	Multiplicity	Documentation
	context : EVENT_CONTEXT	0..1	--	The clinical session context of this Composition, i.e. the contextual attributes of the clinical session.
	content : Set<CONTENT_ITEM>	0..1	0..*	The content of this Composition.
	composer : PARTY_PROXY	1	--

Operations
Signature	Constraints	Documentation
is_persistent() : Boolean		True if category is a “persistent” type, False otherwise. Useful for finding Compositions in an EHR which are guaranteed to be of interest to most users.

Constraints
Name	Expression
Is_archetype_root	inv: is_archetype_root
Content_valid	inv: content <> Void implies not content.is_empty
Composer_valid	inv: composer <> Void
Territory_valid	inv: territory <> Void and code_set(Code_set_id_countries).has_code(territory)
No_parent	inv: parent = Void
Is_persistent_validity	inv: is_persistent implies context = Void
Category_validity	inv: category <> Void and terminology(Terminology_id_openehr). has_code_for_group_id(Group_id_composition_category, category. defining_code)
language_valid	inv: language <> Void and code_set(Code_set_id_languages).has_code(language)