assigning_scheme

Template:— assigning_scheme_version (asg_scm_vn)
Capability:representing_scheme

Date: 2008/06/05 11:30:05
Revision: 1.2

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

This section specifies the template assigning_scheme_version.

NOTE The template has been defined in the context of the capability representing_scheme 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 an assignment relationship between a Scheme_version and the assignment target.

Model diagrams

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

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

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_scheme_version template

Input parameters

The following input parameters are defined for this template:

assignment_role (Type='CLASS')

The role of the assignment.

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

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

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

The External_class_library storing the definition of the class referenced by the parameter @assignment_role

item (Type= 'SELECT (scheme_version_select)' )

The target element of the assignment.

assigned_scheme_version (Type= 'ENTITY (Scheme_version)' )

The Scheme_version that is being assigned.

Reference parameters

The following reference parameters are defined for this template:

scm_vn_asg(Type='ENTITY (Scheme_version_assignment)')

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

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

%^target = $assigning_scheme_version.scm_vn_asg%

where target is the parameter to which the Scheme_version_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.

Scheme_version_assignment
%^scm_vn_asg = Scheme_version_assignment%
Scheme_version_assignment.role = '/IGNORE'
Scheme_version_assignment.items -> @item
Scheme_version_assignment.assigned_activity_method -> @assigned_scheme_version

-- Assign the role of the assignment
/assigning_reference_data(
    items=^scm_vn_asg,
    class_name=@assignment_role,
    ecl_id=@role_ecl_id)/

The following entities are instantiated with attributes as specified:

Entity in path	Value	Inherited from
Scheme_version_assignment.role	'/IGNORE'	Applied_activity_method_assignment.role

Instance diagrams

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

/assigning_scheme_version(assignment_role='Scheme_target', role_ecl_id='urn:plcs:rdl:sample', item='#1', assigned_scheme_version='#2')/

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

Figure 3 — Entities instantiated by assigning_scheme_version 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_scheme_version(assignment_role='Scheme_target', role_ecl_id='urn:plcs:rdl:sample', item='#1', assigned_scheme_version='#2')/

Figure 4 — Instantiation of assigning_scheme_version template

Characterizations

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