Template:— ad_assigning_condition (ad_asg_cond)
Context:— Aerospace_and_Defense

Date: 2011/04/20 12:51:56
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 ad_assigning_condition.

NOTE The template has been defined in the context of Aerospace_and_Defense. 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 and assign a condition.

Model diagrams

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

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

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 ad_assigning_condition template

Input parameters

The following input parameters are defined for this template:

cond_item (Type= 'SELECT (condition_item)' )

The item to which the condition is assigned

cond_asg_class (Type='CLASS')

The name of the External_class used to classify the Condition_assignment and to provide the role or reason for the condition.

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

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

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

The identifier of the External_class_library that stores the definition of the External_class referenced by the parameter @cond_asg_class.

cond_class (Type='CLASS')

Type of Condition to be evaluated.

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

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

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

The identifier of the External_class_library that stores the definition of the External_class referenced by the parameter @cond_class.

Reference parameters

The following reference parameters are defined for this template:

cond(Type='ENTITY (Condition)')

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

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

%^target = $ad_assigning_condition.cond%

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

cond_asg(Type='ENTITY (Condition_assignment)')

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

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

%^target = $ad_assigning_condition.cond_asg%

where target is the parameter to which the Condition_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 Condition entity as
-- referable when this template is used by binding it to the reference
-- parameter ^cond
%^cond = Condition%
Condition.name = '/IGNORE'
Condition.description = '/IGNORE'

-- Provide type of computable condition by the assignment of reference data
/assigning_reference_data(
    items=^cond,
    class_name=@cond_class,
    ecl_id=@cond_ecl_id)/

-- Mark the Condition_assignment entity as
-- referable when this template is used by binding it to the reference
-- parameter cond_asg
%^cond_asg = Condition_assignment%
Condition_assignment.item -> @cond_item
Condition_assignment.assigned_condition -> ^cond

-- Provide the role of the condition by the assignment of reference data
/assigning_reference_data(
    items=^cond_asg,
    class_name=@cond_asg_class,
    ecl_id=@cond_asg_ecl_id)/

The following entities are instantiated with attributes as specified:

Entity in path	Value	Inherited from
Condition.name	'/IGNORE'	—
Condition.description	'/IGNORE'	—

Instance diagrams

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

/ad_assigning_condition(cond_item='#1', cond_asg_class='Discrete_task_limit', cond_asg_ecl_id='urn:plcs:rdl:sample', cond_class='Computable_condition', cond_class_ecl_id='urn:plcs:rdl:std')/

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

Figure 3 — Entities instantiated by ad_assigning_condition template

The instance model in STEP ASCII exchange file format (ISO 10303 Part 21 syntax) is:


          #1 = TASK_METHOD_VERSION_ASSIGNMENT(#2,(#3),'/IGNORE');
          #2 = TASK_METHOD_VERSION('/IGNORE','/IGNORE','/IGNORE','/IGNORE',$,$);
          #3 = PART('/IGNORE','/IGNORE','/IGNORE');
          #4 = CONDITION('/IGNORE','/IGNORE');
          #5 = CONDITION_ASSIGNMENT(#4,#1);
          #7 = CLASSIFICATION_ASSIGNMENT(#8,(#5),'/IGNORE');
          #8 = EXTERNAL_CLASS('/NULL','Discrete_task_limit','/IGNORE',#9);
          #9 = EXTERNAL_CLASS_LIBRARY('urn:plcs:rdl:sample','/IGNORE');
          #11 = CLASSIFICATION_ASSIGNMENT(#12,(#4),'/IGNORE');
          #12 = EXTERNAL_CLASS('/NULL','Computable_condition','/IGNORE',#13);
          #13 = EXTERNAL_CLASS_LIBRARY('urn:plcs:rdl:std','/IGNORE');

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:

/ad_assigning_condition(cond_item='#1', cond_asg_class='Discrete_task_limit', cond_asg_ecl_id='urn:plcs:rdl:sample', cond_class='Computable_condition', cond_class_ecl_id='urn:plcs:rdl:std')/

Figure 4 — Instantiation of ad_assigning_condition template

Characterizations

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