Template:— reportable_item_property (rep_prop) Context:— MoDAvDEX |
Date: 2008/03/12 22:23:29 Revision: 1.16 |
This section specifies the template reportable_item_property.
NOTE The template has been defined in the context of MoDAvDEX. 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 the properties of a reportable item, using
The properties are frequently changed as a consequence of using the reportable item.
For further information about the representation of properties of a reportable item, see Aviation Maintenance DEX: Representing properties on a reportable item.
target
is the parameter to which the
Assigned_property
is bound.
target
is the parameter to which the
Property_value_representation
is bound.
NOTE this characterization is optional.
The incremental change of a property can be assigned to the reportable item property using product_property_numeric and property_value_relationship.
When assigning the increment the template product_property_numeric should be used as follows:
and template property_value_relationship should be used as follows:
The above are examples of the types of values that can be used.
An alternative view is:
Template #2 (Figure 4): product_property_numeric | |||
---|---|---|---|
Description | Representing the property's increment.' | ||
Parameter name: | Parameter value: | Parameter description: | |
value | ?increment_value? | The increment value | |
unit | ?increment_unit? | The unit that the increment value is measured in | |
unit_ecl_id | ?urn:plcs:rdl:LITS? - the URN for the reference data library storing the class. | The identifier of the External_class_library storing the definition of the unit name referenced by the parameter @unit. | |
si_unit | "True" or "False" |
Value should be set to true if the unit is a SI base unit defined by ISO, i.e.
kilogram (kg) for Mass,
second (s) for Time,
metre (m) for Displacement,
ampere (A) for Electrical current,
kelvin (K) for Temperature,
mole (mol) for Amount of substance, and
candela (cd) for Luminous intensity. If this is not the case it should be set to false.
Note that the representation of true and false depends on exchange format. In Part 11 (a STEP file) true is represented by the string ".T.", and false by ".F.", while in Part 28 (XML) they are represented by text strings "true" and "false". |
|
context | "Numerical representation context" (urn:plcs:rdl:std:Numerical representation context) | The name of the class being used to classify the Representation_context of the property. | |
context_ecl_id | "urn:plcs:rdl:std" | The identifier of the External_class_library storing the definition of the class referenced by the parameter @context. | |
property | The Assigned_property entity. | The target of the template, i.e. the Assigned_property (or template assigning_product_property) to which the Property_representation is related. |
Template #3 (Figure 4): property_value_relationship | |||
---|---|---|---|
Description | Relationship between two property values. | ||
Parameter name: | Parameter value: | Parameter description: | |
rel_type |
[Increment_relationship]![]() |
Type of relation between property value representations. | |
rel_type_ecl_id | "urn:plcs:rdl:std" | The identifier of the External_class_library storing the definition of the class referenced by the parameter @rel_type. | |
relating | Property_value_representation | TheProperty_value_representation within the representing_reportable_item_property identified at template #1 | |
related | Property_value_representation | TheProperty_value_representation represented by template product_property_numeric identified at template #2 |
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