assigning_justification_support

Template:— assigning_justification_support_item (asg_just_support)
Capability:representing_justification

Date: 2008/02/15 07:41:23
Revision: 1.12

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

This section specifies the template assigning_justification_support_item.

NOTE The template has been defined in the context of the capability representing_justification which provides an overall description of the relevant parts of the ISO 10303-239 information model and a description 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 supportive information to a justification, e.g. a state definition, a supportive document, a property value, i.e. anything that supports the justification and reason for divergence or discrepancy.

This template is intended to be used when supportive information exists, or when a simple textual description of the justification is not enough. It is used together with template assigning_justification. Any number of support items may be assigned to a single justification.

Model diagrams

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

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

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 assigning_justification_support_item template

Input parameters

The following input parameters are defined for this template:

support_item_role (Default=Justification_support_assignment_role,Type='CLASS', Optional)

The way in which the cited item supports the Justification.

The following classes and their sub-classes can be used:

classifications: "Justification_support_assignment_role" (urn:plcs:rdl:std:Justification_support_assignment_role)

role_ecl_id (Default=urn:plcs:rdl:std,Type='URN', Optional)

The identifier of the External_class_library storing the definition of the class referenced by the parameter @support_item_role.

justification (Type= 'ENTITY (Justification)' )

The Justification being supported.

just_supp_item (Type= 'SELECT (justification_support_item)' )

The item supporting the Justification.

Reference parameters

The following reference parameters are defined for this template:

just_supp_asgn(Type='ENTITY (Justification_support_assignment)')

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

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

%^target = $assigning_justification_support_item.just_supp_asgn%

where target is the parameter to which the Justification_support_assignment 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.

-- Mark the Justification_support_assignment entity as
-- referable when this template is used by binding it to the reference
-- parameter just_supp_assgn
%^just_supp_asgn = Justification_support_assignment%
Justification_support_assignment.description = '/IGNORE'
Justification_support_assignment.role = '/IGNORE'
Justification_support_assignment.justification -> @justification
Justification_support_assignment.support_item -> @just_supp_item

-- provide the role of the assignment by classifying the Justification_support_assignment
/assigning_reference_data(
    items=^just_supp_asgn,
    class_name=@support_item_role,
    ecl_id=@role_ecl_id)/

The following entities are instantiated with attributes as specified:

Entity in path	Value	Inherited from
Justification_support_assignment.description	'/IGNORE'	—
Justification_support_assignment.role	'/IGNORE'	—

Instance diagrams

The instance diagram in Figure 3 shows an example of the EXPRESS entities and templates that are instantiated by the template:

/assigning_justification_support_item(support_item_role='Property_justification', role_ecl_id='urn:plcs:rdl:std', justification='#3', just_supp_item='#25')/

(an illustration of the consolidated assigning_justification_support_item template is shown in Figure 4 below.)

Figure 3 — Entities instantiated by assigning_justification_support_item 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:

/assigning_justification_support_item(support_item_role='Property_justification', role_ecl_id='urn:plcs:rdl:std', justification='#3', just_supp_item='#25')/

Figure 4 — Instantiation of assigning_justification_support_item template

Characterizations

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