NOTE The template has been defined in the context of UK_Defence. Refer to the business context for details of related templates.

NOTE An explanation of a template and the associated instantiation path is provided in the Template overview section.

This template describes the relationship between parent and child requirements, in a requirement decomposition hierarchy.

Requirement information is the means of identifying the relationship between two requirements where the child has been derived from the parent.

This information object represents the information about the decomposition of one requirement from another requirement.

The attributes of the Requirement_derivation object are tabled below.

Attribute name	Attribute description	Attribute type	Optionality
ID	This is the identifier of the the requirement composition.	Identifier	Mandatory
Identifier.id	This is the value of the id attribute of the Identifier applied to the requirement composition.	Intrinsic	Mandatory
Identifier.type	This attribute is the type associated with the id of the Identifier given to the requirement composition. This must be one of the classes provided.	Requirement_composition_identification_code	Mandatory
Identifier.source_organization	This attribute is the value representing the source organization that provides the id of the Identifier given to the requirement composition. This value is assumed to be a type of Organization_identification_code.	Organization_identification_code	Mandatory
Parent	This is a reference to the originating requirement	Relationship to parent requirement	Mandatory
Child		Relationship to child requirement	Mandatory

The following input parameters are defined for this template:

The following reference parameters are defined for this template:

Allow the Requirement_collection_relationship entity instantiated in this path to be referenced when this template is used.

Note: The Requirement_collection_relationship entity can be referenced in a template path by:

%^target = $requirement_composition.requirement_composition%

where target is the parameter to which the Requirement_collection_relationship is bound.

The instantiation path shown below specifies the entities that are to be instantiated by the template.

A description of templates and the syntax for the instantiation path is provided in the Templates Help/Information section.

-- Mark the Requirement_collection_relationship as referable
%^requirement_composition = Requirement_collection_relationship%

-- Link it to the Requirement_version objects.
Requirement_collection_relationship.relating_view -> @parent
Requirement_collection_relationship.related_view -> @child

-- assign the id
/identifier(
    items= ^requirement_composition,
    ID=@id,
    source_organization=@source_organization,
    type='Requirement_composition_identification_code')/