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.

Figure 1 — Graphical Representation for Business Object Task

Task:

The definition of an Task object is: Data about definitions of activities.

Attribute name	Attribute description	Attribute type	Optionality
Acceptance criteria	This is the acceptance criteria for the task	Intrinsic	Mandatory
Category	This is the category of the task. Examples from DEF STAN 00-60 [DED 427, part a, task function] and [DED 640, fitment code, element 1] include: The categories include: "access", "adjust", "align", "calibration", "camouflage", "clean", "condition monitoring", "debug", "disassemble assemble", "dispose", "end of runway inspection", "evaluate", "fault location", "fit", "function ", "inspect", "load unload", "lubricate", "mission profile change role change", "operate", "overhaul", "package unpackage", "preserve", "preventive maintenance on items in store", "process", "reconditioning", "remove ", "replace", "repair", "servicing", "setup", "software modification", "standard serviceability test", "test", "transport", "transportation preparation", "drilling reaming trimming".	Intrinsic	Optional
Description	This is the description of the Task..	Intrinsic	Mandatory
Estimated Duration	The duration of the task.	Intrinsic	Mandatory
ID	This is the Identifier of the Task.	Identifier	Mandatory
Name	This is the name of the Task.	Intrinsic	Mandatory
Periodicity	The time or usage interval that determines when the Task should next be performed.	Intrinsic	Mandatory
Required Outcome	This is the description of the required outcome of the task	Intrinsic	Optional
Subject	This is the subject for which the task was developed and to which it applies.	Relationship to Product Design, Fleet Component, Organization, Risk, Platform System Equipment, Facility Type, Person Type	Mandatory
Version	This is the version of the task	Intrinsic	Mandatory

Table 1 — Task attribute details

-- Task
/representing_task_simple(
    task_id=@ID,
    task_id_class_name='Task_method_identification_code',
    task_id_ecl_id='urn:plcs:rdl:uk_defence',
    task_org_id=@ID_source_organization,
    task_org_id_class_name='Organization_identification_code',
    task_org_id_ecl_id='urn:plcs:rdl:std',
    task_ver_id=@Version,
    task_ver_id_class_name='Identification_code',
    task_ver_id_ecl_id='urn:plcs:rdl:std',
    task_ver_org_id=@Version_source_organization,
    task_ver_org_id_class_name='Organization_identification_code',
    task_ver_org_id_ecl_id='urn:plcs:rdl:std',
    task_name=@Name,
    task_name_class_name='Task_method_name',
    task_name_ecl_id='urn:plcs:rdl:std',
    task_name_org_id=@Name_source_organization,
    task_name_org_id_class_name='Organization_identification_code',
    task_name_org_id_ecl_id='urn:plcs:rdl:std',
    task_details= @Description)/

-- Assign task reference parameter
%^task = $representing_task_simple.task_method_version%
%^task_method = $representing_task_simple.task_method%

-- Acceptance criteria
/assigning_descriptor(
    descr=@Acceptance_criteria,
    class_name='Acceptance_criteria',
    ecl_id='urn:plcs:rdl:uk_defence',
    is_assigned_to=^task)/

-- [optional Required outcome]
/assigning_descriptor(
    descr=@Required_outcome,
    class_name='Required_outcome',
    ecl_id='urn:plcs:rdl:uk_defence',
    is_assigned_to=^task)/

-- [optional Category]
/assigning_reference_data(
    items=^task_method,
    class_name=@Category,
    ecl_id='urn:plcs:rdl:uk_defence')/

-- Estimated_duration
/assigning_process_property(
    property_class_name='Task_estimated_duration',
    property_ecl_id='urn:plcs:rdl:uk_defence',
    described_element=^task)/

-- Assign duration reference parameter
%^duration = $assigning_process_property.property%

-- Estimated_duration value
/process_property_numeric(
    value=@Duration_value,
    unit=@Duration_unit,
    unit_ecl_id='urn:plcs:rdl:std',
    si_unit='false',
    context='Numerical_representation_context',
    context_ecl_id='urn:plcs:rdl:std',
    property=^duration)/

-- Periodicity
/assigning_process_property(
    property_class_name=@Periodicity_type,
    property_ecl_id='urn:plcs:rdl:uk_defence',
    described_element=^task)/

-- Assign periodicity reference parameter
%^periodicity = $assigning_process_property.property%

-- Periodicity value
/product_property_numeric(
    value=@Periodicity_value,
    unit=@Periodicity_unit,
    unit_ecl_id='urn:plcs:rdl:std',
    si_unit='false',
    context='Numerical_representation_context',
    context_ecl_id='urn:plcs:rdl:std',
    property=^periodicity)/

-- Subject
Task_method_assignment
Task_method_assignment.assigned_activity_method -> ^task
Task_method_assignment.items -> @Subject

The instance diagram in Figure 4 shows an example of the EXPRESS entities and templates that are instantiated by the template:

/task(Acceptance_criteria='Filter fitted', Category='Cat1', ID='T01', ID_source_organization='UK_Defence', Name='Replace filter', Name_source_organization='UK_Defence', Version='V01', Version_source_organization='UK_Defence', Description='Remove and dispose of existing filter. Replace with new filter.', Required_outcome='Clean filter', Duration_value='ANY_NUMBER_VALUE(10)', Duration_unit='Hour', Periodicity_type='Task_periodicity_as_duration', Periodicity_value='ANY_NUMBER_VALUE(40)', Periodicity_unit='Day', Subject='#142')/

(an illustration of the consolidated task template is shown in Figure 5 below.)

The instance diagram in Figure 5 shows the graphic symbol for the template that is to be used in other instance diagrams. The example template is: