Template:— assigning_task_interval (asg_task_intvl)
Context:— NOLITO

Date: 2008/05/06 14:07:06
Revision: 1.1

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

This section specifies the template assigning_task_interval.

NOTE The template has been defined in the context of NOLITO. 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.

This template describes how to represent a task interval, and the operational status for which the interval is effective.

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

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

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

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_task_interval template

Figure 2 — The graphical representation of the assigning_task_interval template

Input parameters

The following input parameters are defined for this template:

interval_type (Type='CLASS')

Name of the External_class that defines the type of task interval (scheduled, event_based or unknown).

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

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

operating_state (Type='CLASS')

Name of the External_class that defines the operating state for which the task interval is effective (in storage, in operation, or total).

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

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

operating_state_ecl_id (Type='URN')

Name of the External_class_library in which the Extarnal_class given for the operating_state is defined.

task (Type= 'SELECT (condition_item)' )

The entity to which the task interval is being assigned.

interval (Type= 'SELECT (condition_parameter_item)' )

The entity which defines the task interval.

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.

Identification_assignment

-- Mark the Identification_assignment entity as
-- referable when this template is used by binding it to the reference
-- parameter id_assgn
%^id_assgn = Identification_assignment%

Error P8: the template assigning_task_interval does not have a parameter name [id].
Identification_assignment.identifier = @id
Identification_assignment.role = '/IGNORE'
Identification_assignment.description = '/NULL'

Error P4: the template assigning_task_interval does not have a parameter name [items].
Identification_assignment.items -> @items

-- provide the role of the identification by classifying the Identification_assignment
/assigning_reference_data(
    items=^id_assgn,
    class_name=@id_class_name,
    ecl_id=@id_ecl_id)/

Error t3: the template assigning_task_interval does not have a parameter name [id_class_name]. Parameters are: interval_type operating_state operating_state_ecl_id task interval items class_name ecl_id

Error t3: the template assigning_task_interval does not have a parameter name [id_ecl_id]. Parameters are: interval_type operating_state operating_state_ecl_id task interval items class_name ecl_id

-- assign an organization to the identifier and classify it as 'Owner_of'
/assigning_organization(
    items=^id_assgn,
    org_id=@org_id,
    org_id_class_name=@org_id_class_name,
    org_id_ecl_id=@org_id_ecl_id,
    org_assgn_class_name='Owner_of',
    org_assgn_ecl_id='urn:plcs:rdl:std')/

Error t3: the template assigning_task_interval does not have a parameter name [org_id]. Parameters are: interval_type operating_state operating_state_ecl_id task interval items class_name ecl_id

Error t3: the template assigning_task_interval does not have a parameter name [org_id_class_name]. Parameters are: interval_type operating_state operating_state_ecl_id task interval items class_name ecl_id

Error t3: the template assigning_task_interval does not have a parameter name [org_id_ecl_id]. Parameters are: interval_type operating_state operating_state_ecl_id task interval items class_name ecl_id

The following entities are instantiated with attributes as specified:

Entity in path	Value	Inherited from
Identification_assignment.identifier	@id	—
Identification_assignment.role	'/IGNORE'	—
Identification_assignment.description	'/NULL'	—

Instance diagrams

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

/assigning_task_interval(items='#1', class_name='Safety_critical', ecl_id='urn:plcs:rdl:std')/

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

Figure 3 — Entities instantiated by assigning_task_interval template

Figure 3 — Entities instantiated by assigning_task_interval 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_task_interval(items='#1', class_name='Safety_critical', ecl_id='urn:plcs:rdl:std')/

Figure 4 — Instantiation of assigning_task_interval template

Figure 4 — Instantiation of assigning_task_interval template

Characterizations

No common characterizations of the template assigning_task_interval 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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