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Application module: Interface | ISO/TS 10303-1251:2004(E) © ISO |
This clause specifies the information requirements for the Interface 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 Interface_arm schema and identifies the necessary external references.
EXPRESS specification:
*)
SCHEMA Interface_arm;
(*
The following EXPRESS interface statements specify the elements imported from the ARMs of other application modules.
EXPRESS specification:
*)
USE FROM
Product_identification_arm;
--
ISO/TS 10303-1017
USE FROM
Product_version_arm;
--
ISO/TS 10303-1018
USE FROM
Product_view_definition_arm;
--
ISO/TS 10303-1019
USE FROM
Product_view_definition_relationship_arm;
--
ISO/TS 10303-1041
(*
NOTE 1 The schemas referenced above are specified in the following part of ISO 10303:
Product_identification_arm ISO/TS 10303-1017 Product_version_arm ISO/TS 10303-1018 Product_view_definition_arm ISO/TS 10303-1019 Product_view_definition_relationship_arm ISO/TS 10303-1041
NOTE 2 See Annex C, Figures C.1and C.2 for a graphical representation of this schema.
This subclause specifies the ARM types for this application module. The ARM types and definitions are specified below.
The connection_definition_items type allows for the designation of the data types Interface_connector_definition and Product_view_definition.
EXPRESS specification:
*)
TYPE
connection_definition_items =
SELECT
(Interface_connector_definition,
Product_view_definition);
END_TYPE;
(*
The connection_items type allows for the designation of the data types connection_definition_items, Interface_connector_occurrence and View_definition_relationship.
EXPRESS specification:
*)
TYPE
connection_items =
SELECT
(connection_definition_items,
Interface_connector_occurrence,
View_definition_relationship);
END_TYPE;
(*
The connector_on_item type is an extensible list of alternate data types that allows for the designation of the data types Product_view_definition and View_definition_relationship.
NOTE The list of entity data types may be extended in application modules that use the constructs of this module.
EXPRESS specification:
*)
TYPE
connector_on_item =
EXTENSIBLE
SELECT
(Product_view_definition,
View_definition_relationship);
END_TYPE;
(*
The interface_definition_item type allows for the designation of the data types Interface_connector_occurrence and Product_view_definition.
EXPRESS specification:
*)
TYPE
interface_definition_item =
SELECT
(Interface_connector_occurrence,
Product_view_definition);
END_TYPE;
(*
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 Hierarchical_interface_connection is a type of Interface_connection that provides an interconnection between components at different levels in an assembly. Each connection point in the assembly is represented by a Interface_connector_occurrence.
EXAMPLE An appliance such as a television has a power lead and attached plug. The plug and power lead could be represented as an assembly of parts such as the plug pins and wires. Each connection point of the pins and wires in the assembly is represented by a Interface_connector_occurrence and an instance of the Hierarchical_interface_connection entity data type identifies the connection of the pins (the parts) to the plug (the assembly) in the assembly.
EXPRESS specification:
*)
ENTITY Hierarchical_interface_connection
SUBTYPE OF (Interface_connection);
END_ENTITY;
(*
A Interface_connection is an interconnection between a connected pair of Interface_connector_occurrences. Each Interface_connector_occurrence represents the place where a product used in an assembly can interact with other products in the assembly.
EXAMPLE An appliance such as a television has a power lead and attached plug. The plug and power lead could be represented as an assembly of parts such as the plug pins and wires. Each connection point of the pins and wires in the assembly is represented by a Interface_connector_occurrence and an instance of the Interface_connection entity data type identifies the connection of the pins to the wires in the assembly.
EXPRESS specification:
*)
ENTITY Interface_connection;
id : STRING;
description :
OPTIONAL
STRING;
connection_type : STRING;
connecting : connection_items;
connected : connection_items;
END_ENTITY;
(*
Attribute definitions:
id: the identifier for the Interface_connection.
description: the text that provides further information about the Interface_connection. The value of this attribute need not be specified.
connection_type: the type of the connection.
connecting: one of the instances of the connected pair of Interface_connector_occurrences.
connected: the other instance of the connected pair of Interface_connector_occurrences. If one element of the relationship is dependent upon the other, this attribute shall be the dependent one.
An Interface_connector is a type of Product that identifies a part of a product with which one or more other products or the environment interacts.
NOTE This is sometimes referred to as a "port".
EXAMPLE A computer has a socket to which to connect a network cable. An instance of the Interface_connector entity data type identifies the role of the socket in the interface and is the subject of a specification that defines the necessary geometrical and electrical attributes to ensure a functioning interface between the computer and network hardware.
EXPRESS specification:
*)
ENTITY Interface_connector
SUBTYPE OF (Product);
END_ENTITY;
(*
EXAMPLE A reliability engineer assesses the likely failure modes of design version 3.8 for the connector between a brake unit and the hydraulic control system. The engineer generates a set of data that is a specific view of the connector. An instance of the Interface_connector_definition entity data type collects these data together.
EXPRESS specification:
*)
ENTITY Interface_connector_definition
SUBTYPE OF (Product_view_definition);
connector_on : Product_view_definition;
SELF\Product_view_definition.defined_version : Interface_connector_version;
END_ENTITY;
(*
Attribute definitions:
connector_on: the item for which the Interface_connector_definition provides an interface capability.
defined_version: the Interface_connector_definition shall only be a view of an Interface_connector.
EXPRESS specification:
*)
ENTITY Interface_connector_occurrence;
id : STRING;
name : STRING;
description :
OPTIONAL
STRING;
occurrence_of : Interface_connector_definition;
connector_on : connector_on_item;
END_ENTITY;
(*
Attribute definitions:
id: the identifier for the Interface_connector_occurrence.
name: the words by which the Interface_connector_occurrence is known.
description: the text that provides further information about the Interface_connector_occurrence. The value of this attribute need not be specified.
occurrence_of: the Interface_connector_definition of which the Interface_connector_occurrence is an occurrence of.
connector_on: the item for which the Interface_connector_occurrence provides an interface capability.
EXPRESS specification:
*)
ENTITY Interface_connector_version
SUBTYPE OF (Product_version);
SELF\Product_version.of_product : Interface_connector;
END_ENTITY;
(*
Attribute definitions:
of_product: the Interface_connector_version shall only be a version of an Interface_connector.
EXAMPLE A socket in the wall provides access to the domestic electricity supply. An appliance such as a television has a power lead and plug that fits into the socket. An instance of the Interface_definition_connection entity data type identifies this fitting of the plug into the socket.
EXPRESS specification:
*)
ENTITY Interface_definition_connection;
id : STRING;
description :
OPTIONAL
STRING;
connection_type : STRING;
connecting : connection_definition_items;
connected : connection_definition_items;
END_ENTITY;
(*
Attribute definitions:
id: the identifier for the Interface_definition_connection.
description: the text that provides further information about the Interface_definition_connection. The value of this attribute need not be specified.
connection_type: the type of the connection.
connecting: one of the instances of the connected pair of Interface_connector_definitions, or if the point of interconnection is not specified, the interconnection between a pair of Product_view_definitions.
connected: the other instance of the connected pair of Interface_connector_definitions or Product_view_definitions. If one element of the relationship is dependent upon the other, this attribute shall be the dependent one.
EXAMPLE The infrared transmitter in a television remote control conforms to the specification that has the identifier 2345/XYZ/001. An instance of the Interface_definition_for entity data type is necessary to identify this relationship.
EXPRESS specification:
*)
ENTITY Interface_definition_for;
id : STRING;
name : STRING;
description :
OPTIONAL
STRING;
interface : Interface_specification_definition;
interface_component : interface_definition_item;
END_ENTITY;
(*
Attribute definitions:
id: an identifier for the relationship between the specification and the conforming item.
name: the words by which the relationship between the specification and the conforming item is known.
description: the text that provides further information about the relationship between the specification and the conforming item. The value of the attribute need not be specified.
interface: the specification that defines necessary attributes for the item that participates in the interface.
interface_component: the item that conforms to the interface specification.
EXAMPLE BSI develops a standard for connecting domestic electrical equipment to the electricity supply.
EXPRESS specification:
*)
ENTITY Interface_specification
SUBTYPE OF (Product);
END_ENTITY;
(*
EXAMPLE When developing a BSI standard for connecting domestic electrical equipment to the electricity supply, collected comments from experts form a new view on a version of the standard.
EXPRESS specification:
*)
ENTITY Interface_specification_definition
SUBTYPE OF (Product_view_definition);
SELF\Product_view_definition.defined_version : Interface_specification_version;
END_ENTITY;
(*
Attribute definitions:
defined_version: the Interface_specification_definition shall only be a view of an Interface_specification.
EXAMPLE In 1999, BSI issues a new version of a standard for connecting domestic electrical equipment to the electricity supply.
EXPRESS specification:
*)
ENTITY Interface_specification_version
SUBTYPE OF (Product_version);
SELF\Product_version.of_product : Interface_specification;
END_ENTITY;
(*
Attribute definitions:
of_product: the Interface_specification_version shall only be a version of an Interface_specification.
*)
END_SCHEMA; -- Interface_arm
(*
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