Template:— cost_item_relationship (cst_itm_reln)
Context:— UK_Defence

Date: 2010/03/15 14:22:42
Revision: 1.3

Cover Contents Description Bus. perspective Bus. obj.Model diags.Input params.Ref. params.Instantiation path Instance diags.Characterizations Issues in situ

This section specifies the template cost_item_relationship.

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.

Description

This template describes how to represent the UK_Defence concept of "Cost Item Relationship in terms of PLCS model elements (templates, entities, and reference data).

Business perspective

The Cost Item business object is used by those UK_Defence Data Exchange Specifications that require information about the relationships between support cost types.

Business object definition

Figure 1 — Graphical Representation for Business Object Cost Relationship

Cost Item Type

The definition of the Cost Item Type object is: This information object represents the parent/child relationship between two cost item types.

Attribute name	Attribute description	Attribute type	Optionality
Id	This is the identifier of the support cost type.	Intrinsic	Mandatory
child	This is a reference to the child cost item type.	Relationship to Cost Item Type	Mandatory
parent	This is a reference to the parent cost item type.	Relationship to Cost Item Type	Mandatory

Table 1 — Cost Item Relationship attribute details.

Model diagrams

The EXPRESS-G diagram in Figure 2 shows the templates and EXPRESS entities that are required to represent the template "cost_item_relationship". The text highlighted in blue shows the template parameters.

Figure 2 — An EXPRESS-G representation of the Information model for cost_item_relationship

The graphic for the template to be used in other EXPRESS-G diagrams is shown in Figure 3 below.

Figure 3 — The graphical representation of the cost_item_relationship template

Input parameters

The following input parameters are defined for this template:

id (Type='STRING')

The identifier of the Cost item relationship.

source_organization (Type='STRING')

The identifier of the organization responsible for identifying the Cost item relationship.

parent (Type= 'ENTITY (Breakdown_element_definition)' )

This is a reference to the parent cost item type.

child (Type= 'ENTITY (Breakdown_element_definition)' )

This is a reference to the child cost item type.

Reference parameters

The following reference parameters are defined for this template:

cost_item_relationship(Type='ENTITY (Breakdown_element_usage)')

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

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

%^target = $cost_item_relationship.cost_item_relationship%

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

Instantiation path

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.

/representing_breakdown_structure(
    rel_type_name='Cost_item_relationship',
    rel_ecl_id='urn:plcs:rdl:UK_Defence',
    parent=@parent,
    child=@child)/
%^cost_item_relationship = $representing_breakdown_structure.usage%
/identifier(
    ID=@id,
    source_organization=@source_organization,
    type='Cost_item_relationship_id_code',
    items=^cost_item_relationship)/

Instance diagrams

The instance diagram in Figure 4 shows an example of the EXPRESS entities and templates that are instantiated by the template:

/cost_item_relationship(id='', source_organization='', parent='@7', child='@123')/

(an illustration of the consolidated cost_item_relationship template is shown in Figure 5 below.)

Figure 4 — Entities instantiated by cost_item_relationship template

The instance diagram in Figure 5 shows the graphic symbol for the template that is to be used in other instance diagrams. The example template is:

/cost_item_relationship(id='', source_organization='', parent='@7', child='@123')/

Figure 5 — Instantiation of cost_item_relationship template

Characterizations

No common characterizations of the template cost_item_relationship have been identified. However, the ISO 10303-239 EXPRESS model may enable other assignments to the entities instantiated by the template.