Template:— system_breakdown (sys_brkd)
Context:— UK_Defence
Date: 2009/04/17 12:10:22
Revision: 1.2

This section specifies the template system_breakdown.

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 a system breakdown in terms of PLCS model elements (templates, entities, and reference data).

Business perspective

This information object represents the hierarchical structure of systems of a product .

Business object definition

The definition of the system breakdown object is: This information object represents the hierarchical structure of systems of a product .



Figure 1 —  Graphical Representation for Business Object System Breakdown

Figure 1 —  Graphical Representation for Business Object System Breakdown

Attribute name

Attribute description

Attribute type

Optionality

description This attribute provides the description of the breakdown. Intrinsic Mandatory
id This attribute provides the identification information of the breakdown. Identifier Mandatory
Identifier.id This is the value of the id attribute of the Identifier applied to the System Breakdown. intrinsic Mandatory
Identifier.type This attribute is the type associated with the id of the Identifier given to the System Breakdown. This must be one of the classes provided. System_breakdown_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 System Breakdown. This value is assumed to be a type of Organization_identification_code. Organization_identification_code Mandatory
name This attribute provides the name information of the breakdown. Intrinsic Mandatory
Related Product Design This attribute identifies the design information associated with the breakdown. Product Design Mandatory
type This attribute provides the type information of the system breakdown. Intrinsic Mandatory
version This attribute identifies the version of the breakdown. Intrinsic Mandatory

Table 1 — System Breakdown attribute details

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


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

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

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 system_breakdown template

Figure 3 —  The graphical representation of the system_breakdown template

Input parameters
The following input parameters are defined for this template:
id (Type='STRING')
The identifier of the system breakdown.
source_organization (Type='STRING')
The organization or information system that created the associated identifier. Alternatively this could be set to /NULL when Person or Information System is the source; see Identifier template characterizations.
name (Type='STRING')
The name of the system breakdown.
description (Type='STRING', Optional)
The description of the system breakdown.
type (Default=System_breakdown_type,Type='CLASS', Optional)
The type of the system breakdown.
The following classes and their sub-classes can be used:
classifications: [System_breakdown_type]
[warning:]Error RDL4: The URI urn:plcs:rdl:uk_defence is not listed in dexlib/data/refdata/rdl_index.xml
version (Type='STRING')
The identifier of the system breakdown version.
related_product_design (Type= 'ENTITY (Product_view_definition)' )
The product design that relates to this breakdown.
Reference parameters
The following reference parameters are defined for this template:
syst_bkdn(Type='ENTITY (System_breakdown)')
Allow the System_breakdown entity instantiated in this path to be referenced when this template is used.
Note: The System_breakdown entity can be referenced in a template path by:
%^target = $system_breakdown.syst_bkdn%
where target is the parameter to which the System_breakdown is bound.
syst_bkdn_vn(Type='ENTITY (System_breakdown_version)')
Allow the System_breakdown_version entity instantiated in this path to be referenced when this template is used.
Note: The System_breakdown_version entity can be referenced in a template path by:
%^target = $system_breakdown.syst_bkdn_vn%
where target is the parameter to which the System_breakdown_version is bound.
bkdwn_of(Type='ENTITY (Breakdown_of)')
Allow the Breakdown_of entity instantiated in this path to be referenced when this template is used.
Note: The Breakdown_of entity can be referenced in a template path by:
%^target = $system_breakdown.bkdwn_of%
where target is the parameter to which the Breakdown_of 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_system_breakdown(
    id=@id,
    id_class_name='System_breakdown_identification_code',
    id_ecl_id='urn:plcs:rdl:uk_defence',
    id_owner=@source_organization,
    id_owner_class_name='Organization_identification_code',
    id_owner_ecl_id='urn:plcs:rdl:uk_defence',
    bkdn_type=@type,
    bkdn_type_ecl_id='urn:plcs:rdl:uk_defence',
    vn_id=@version,
    vn_id_class_name='Version_identification_code',
    vn_id_ecl_id='urn:plcs:rdl:uk_defence',
    vn_id_owner=@source_organization,
    vn_id_owner_class_name='Organization_identification_code',
    vn_id_owner_ecl_id='urn:plcs:rdl:uk_defence')/

-- assign ref parameters
%^syst_bkdn = $representing_system_breakdown.sys_bkdn%
%^syst_bkdn_vn = $representing_system_breakdown.sys_bkdn_vn%
%^bkdwn_of = $representing_system_breakdown.bkdn_of%
^bkdwn_of.of_view -> @related_product_design

-- name
/identifier(
    ID=@name,
    source_organization=@source_organization,
    type='System_breakdown_name',
    items=^syst_bkdn)/

-- description
/assigning_descriptor(
    descr=@description,
    class_name='System_breakdown',
    ecl_id='urn:plcs:rdl:uk_defence',
    is_assigned_to=^syst_bkdn)/
Instance diagrams
The instance diagram in Figure  4 shows an example of the EXPRESS entities and templates that are instantiated by the template:
/system_breakdown(id='SB-Torn-GR4', source_organization='6421', name='System breakdown Tornado GR4', description='Breakdown of a Tornado GR4 in terms of its systems', type='System_breakdown', version='A', related_product_design='@80')/
(an illustration of the consolidated system_breakdown template is shown in Figure 5 below.)


Figure 4 —  Entities instantiated by system_breakdown template

Figure 4 —  Entities instantiated by system_breakdown 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:
/system_breakdown(id='SB-Torn-GR4', source_organization='6421', name='System breakdown Tornado GR4', description='Breakdown of a Tornado GR4 in terms of its systems', type='System_breakdown', version='A', related_product_design='@80')/


Figure 5 —  Instantiation of system_breakdown template

Figure 5 —  Instantiation of system_breakdown template

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

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