|
|
Application module:
Physical breakdown |
ISO/TS 10303-1215:2008(E)
© ISO
|
This clause specifies the information requirements for the
Physical breakdown
application module. The information requirements are specified as the
Application Reference Model (ARM) of this application module.
NOTE 1 A graphical representation of the information
requirements is given in
Annex C.
NOTE 2 The mapping specification is specified in
5.1. It shows how
the information requirements are met by using common resources and
constructs defined or imported in the MIM schema of this application
module.
The following EXPRESS specification begins the
Physical_breakdown_arm
schema and identifies the necessary external references.
EXPRESS specification:
*)
SCHEMA Physical_breakdown_arm;
(*
The following EXPRESS interface statement specifies the elements
imported from the ARM of another application module.
EXPRESS specification:
*)
USE FROM
Product_breakdown_arm;
--
ISO/TS 10303-1248
(*
NOTE 1
The schemas referenced above are specified in the following
part of ISO 10303:
| Product_breakdown_arm |
ISO/TS 10303-1248 |
NOTE 2
See Annex C,
Figures
C.1and C.2
for a graphical representation of this schema.
This subclause specifies the ARM entities for this
module. Each ARM application entity is an atomic element that
embodies a unique application concept and contains attributes
specifying the data elements of the entity. The ARM
entities and definitions are specified below.
A Physical_breakdown is a type of
Breakdown
that identifies a partitioning of a product into a set of related physical
elements so as to form explicit, parent-child views that comprise the
product elements.
The parent-child view is represented by
Physical_element_usage
instances relating the physical elements in the breakdown which are represented by
Physical_elements.
EXAMPLE
A physical breakdown might provide a decomposition of an
automobile in terms such as body, roof, bonnet, bumpers and this breakdown
might be differerent from, and orthogonal to, a parts decomposition.
EXPRESS specification:
*)
ENTITY Physical_breakdown
SUBTYPE OF (Breakdown);
END_ENTITY;
(*
A
Physical_breakdown_context
is a type of
Breakdown_context
that is a membership relationship between a
Physical_element
and a
Physical_breakdown
of which the physical element is a member.
EXAMPLE
A wheel is a member of the physical breakdown of an automobile.
EXPRESS specification:
*)
ENTITY Physical_breakdown_context
SUBTYPE OF (Breakdown_context);
SELF\Breakdown_context.breakdown : Physical_breakdown_version;
SELF\Breakdown_context.breakdown_element : Physical_element_definition;
END_ENTITY;
(*
Attribute definitions:
breakdown:
the version of the
Physical_breakdown
of which the
Physical_element
is a member.
breakdown_element:
the view of the version of the
Physical_element
that is a member of the
Physical_breakdown.
A
Physical_breakdown_version
is a type of
Breakdown_version
that identifies a version of a
Physical_breakdown
.
EXAMPLE
An engineer modifies the current physical breakdown for an aircraft on the basis of a tail re-design.
EXPRESS specification:
*)
ENTITY Physical_breakdown_version
SUBTYPE OF (Breakdown_version);
SELF\Breakdown_version.of_product : Physical_breakdown;
END_ENTITY;
(*
Attribute definitions:
of_product:
the Physical_breakdown_version shall only be a version of a
Physical_breakdown
.
A
Physical_element
is a type of
Breakdown_element
that identifies the elements in one or more
Physical_breakdown
objects.
EXPRESS specification:
*)
ENTITY Physical_element
SUBTYPE OF (Breakdown_element);
END_ENTITY;
(*
A
Physical_element_definition
is a type of
Breakdown_element_definition
that identifies a view of a version
(Physical_element_version)
of a
Physical_element.
EXPRESS specification:
*)
ENTITY Physical_element_definition
SUBTYPE OF (Breakdown_element_definition);
SELF\Breakdown_element_definition.defined_version : Physical_element_version;
END_ENTITY;
(*
Attribute definitions:
defined_version:
the Physical_element_definition shall only be a view of a
Physical_element.
A
Physical_element_usage
is a type of
Breakdown_element_usage
that is a relationship between a parent and child
Physical_element.
EXAMPLE
In a physical breakdown, the aircraft (parent) might include (as children) a fuselage, wings, tail and undercarriage.
EXPRESS specification:
*)
ENTITY Physical_element_usage
SUBTYPE OF (Breakdown_element_usage);
SELF\Breakdown_element_usage.parent_element : Physical_element_definition;
SELF\Breakdown_element_usage.child_element : Physical_element_definition;
END_ENTITY;
(*
Attribute definitions:
parent_element:
the parent physical element of the relationship.
child_element:
the child physical element of the relationship.
A
Physical_element_version
is a type of
Breakdown_element_version
that identifies a version of a
Physical_element
.
EXAMPLE
An engineer changes the details describing the undercarriage that is an element in a physical breakdown of an aircraft.
EXPRESS specification:
*)
ENTITY Physical_element_version
SUBTYPE OF (Breakdown_element_version);
SELF\Breakdown_element_version.of_product : Physical_element;
END_ENTITY;
(*
Attribute definitions:
of_product:
the Physical_element_version shall only be a version of a
Physical_element
.
*)
END_SCHEMA; -- Physical_breakdown_arm
(*
© ISO 2008 — All rights reserved
