Template:— item_of_supply_specification (itm_of_sply_spec)
Context:— UK_Defence
Date: 2009/04/17 10:01:11
Revision: 1.2

This section specifies the template item_of_supply_specification.

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 a specification which may be referenced within a cataloguing system or a system that requires key information about a part for selection and ordering, but not the detailed information required to manufacture it.

It is specifically based upon the 'item' template (which in turn is based upon the representing_part template), which is specialised for (at least) one UK_Defence business DEX usage.

This particular template constrains the use of the 'item' template view to be a type of 'Item of support specification'.

This lifecycle stage is not defaulted to 'Codification stage' (for historical reasons), but is not fixed.

Most of the information about the item is attached via properties, documents, status assignments, effectivity and through extending the reference data classes provided.

Model diagrams
The EXPRESS-G diagram in Figure 1 shows the templates and EXPRESS entities that are required to represent the template "item_of_supply_specification". The text highlighted in blue shows the template parameters.


Figure 1 —  An EXPRESS-G representation of the Information model for item_of_supply_specification

Figure 1 —  An EXPRESS-G representation of the Information model for item_of_supply_specification

The graphic for the template to be used in other EXPRESS-G diagrams is shown in Figure  2 below.


Figure 2 —  The graphical representation of the item_of_supply_specification template

Figure 2 —  The graphical representation of the item_of_supply_specification template

Input parameters
The following input parameters are defined for this template:
ios_spec_id (Type='STRING')
The specification id
ios_spec_id_type (Default=Product_specification_code,Type='CLASS')
The type of identifier for the specification - is assumed to be Product_specification_code
The following classes and their sub-classes can be used:
classifications: [Product_specification_code]
[warning:]Error RDL4: The URI urn:plcs:rdl:uk_defence is not listed in dexlib/data/refdata/rdl_index.xml
ios_spec_org_ncage (Type='STRING')
The ncage identifier of the organization (assumed to be a design authority) that provides/owns the specification
ios_version (Default=1.0,Type='STRING')
The version identifier of the item
ios_view (Default=Item_of_supply_specification,Type='CLASS')
The identifier of the External_class_library used to describe the type of life cycle stage of the View_definition_context instance.
The following classes and their sub-classes can be used:
classifications: [Item_of_supply_specification]
[warning:]Error RDL4: The URI urn:plcs:rdl:uk_defence is not listed in dexlib/data/refdata/rdl_index.xml
[ISIS_specification]
[warning:]Error RDL4: The URI urn:plcs:rdl:uk_defence is not listed in dexlib/data/refdata/rdl_index.xml
[Product_specification]
[warning:]Error RDL4: The URI urn:plcs:rdl:uk_defence is not listed in dexlib/data/refdata/rdl_index.xml
[Part_specification]
[warning:]Error RDL4: The URI urn:plcs:rdl:uk_defence is not listed in dexlib/data/refdata/rdl_index.xml
[Codified_item_specification]
[warning:]Error RDL4: The URI urn:plcs:rdl:uk_defence is not listed in dexlib/data/refdata/rdl_index.xml
[Catalogue_item_specification]
[warning:]Error RDL4: The URI urn:plcs:rdl:uk_defence is not listed in dexlib/data/refdata/rdl_index.xml
[IPC_specification]
[warning:]Error RDL4: The URI urn:plcs:rdl:uk_defence is not listed in dexlib/data/refdata/rdl_index.xml
ios_lifecycle_stage (Default=Codification_stage,Type='CLASS')
The identifier of the External_class_library used to describe the type of life cycle stage of the View_definition_context instance.
The following classes and their sub-classes can be used:
classifications: "Life_cycle_stage" (urn:plcs:rdl:std:Life_cycle_stage)
Reference parameters
The following reference parameters are defined for this template:
ios_specification(Type='ENTITY (Part)')
Allow the Part entity instantiated in this path to be referenced when this template is used.
Note: The Part entity can be referenced in a template path by:
%^target = $item_of_supply_specification.ios_specification%
where target is the parameter to which the Part is bound.
ios_spec_version(Type='ENTITY (Part_version)')
Allow the Part_version entity instantiated in this path to be referenced when this template is used.
Note: The Part_version entity can be referenced in a template path by:
%^target = $item_of_supply_specification.ios_spec_version%
where target is the parameter to which the Part_version is bound.
ios_spec_view(Type='ENTITY (Part_view_definition)')
Allow the Part_view_definition entity instantiated in this path to be referenced when this template is used.
Note: The Part_view_definition entity can be referenced in a template path by:
%^target = $item_of_supply_specification.ios_spec_view%
where target is the parameter to which the Part_view_definition is bound.
ios_spec_contxt(Type='ENTITY (View_definition_context)')
Allow the View_definition_context entity instantiated in this path to be referenced when this template is used.
Note: The View_definition_context entity can be referenced in a template path by:
%^target = $item_of_supply_specification.ios_spec_contxt%
where target is the parameter to which the View_definition_context 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.
/item(
    oem_part_number=@ios_spec_id,
    item_id_class=@ios_spec_id_type,
    mfr_ncage_code=@ios_spec_org_ncage,
    item_vn_id=@ios_version,
    item_lifecycle_stage=@ios_lifecycle_stage)/

-- re-direct the output from the call..
%^ios_specification = $item.item%
%^ios_spec_version = $item.item_version%
%^ios_spec_view = $item.item_view%
%^ios_spec_contxt = $item.item_contxt%

-- provide the role of the item by classifying the item of supply view
/assigning_reference_data(
    items=^ios_spec_view,
    class_name=@ios_view,
    ecl_id='urn:plcs:rdl:uk_defence')/
Instance diagrams
The instance diagram in Figure  3 shows an example of the EXPRESS entities and templates that are instantiated by the template:
/item_of_supply_specification(ios_spec_id='CHG-PS-56661', ios_spec_id_type='Product_specification_code', ios_spec_org_ncage='96214', ios_version='A1', ios_view='item_of_supply_specification', ios_lifecycle_stage='Codification_stage')/
(an illustration of the consolidated item_of_supply_specification template is shown in Figure 4 below.)


Figure 3 —  Entities instantiated by item_of_supply_specification template

Figure 3 —  Entities instantiated by item_of_supply_specification template

The instance diagram in Figure 4 shows the graphic symbol for the template that is to be used in other instance diagrams. The example template is:
/item_of_supply_specification(ios_spec_id='CHG-PS-56661', ios_spec_id_type='Product_specification_code', ios_spec_org_ncage='96214', ios_version='A1', ios_view='item_of_supply_specification', ios_lifecycle_stage='Codification_stage')/


Figure 4 —  Instantiation of item_of_supply_specification template

Figure 4 —  Instantiation of item_of_supply_specification template

Characterizations
No common characterizations of the template item_of_supply_specification 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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