Assigns to Product

Overview

Describes a relationship in which a set of objects are assigned to a product. This could be for any purpose of qualifying a product such as identifying processes that operate on a product, condition that define a degraded state of a product, actors that fulfil roles in connection with the product and so on.

Results

Declares the assignment of a collection of objects to a product

Description	Entity/Pset/Functional Part	MAN	REC	OPT
Create the product to which entities will be related and the entities that will be related to it.
Set the occurrence of the parent product in the relationship Any subtype of IfcProduct may act as the parent product in the relationship	IfcProduct <parent subtypes>
Set the occurrences of the child entities in the relationship	IfcObject <child subtypes>
Assert the attributes of the relationship
Assert the parent relationship	IfcRelAssignsToGroup.RelatingGroup::IfcGroup <subtype>
Assert the child relationship	IfcRelAssignsToGroup.RelatedObjects::IfcObject <subtypes>
Assert the type of related objects from the predefined list if required This value can be used to identify the parent supertype of related objects as e.g. product, group, process, control etc. If the related objects have mixed supertypes, then the value .NOTDEFINED. should be used.	IfcRelAssignsToGroup.RelatedObjectsType::IfcObjectTypeEnum
Assert the identity of the relationship	IfcRelAssignsToGroup.GlobalId::IfcGloballyUniqueId
Assert the owner history of the relationship	IfcRelAssignsToGroup.OwnerHistory::fp_apply_owner_history
Specify a name of the relationship	IfcRelAssignsToGroup.Name
Specify a description of the relationship	IfcRelAssignsToGroup.Description

IFC Entities Required

IfcObject
IfcProduct
IfcRelationsip
IfcRelAssigns
IfcRelAssignsToProduct
IfcRoot

IFC Datatypes Required

IfcGloballyUniqueId
IfcLabel
IfcObjectTypeEnum
IfcText

IFC Functions Required

-

IFC Property Sets Required

-

IDM Functional Parts Required

fp_apply_owner_history
fp_place_object
fp_represent_product

EXPRESS-G

EXPRESS Schema

SCHEMA FP_ASSIGNS_TO_PRODUCT;

  TYPE IfcGloballyUniqueId = STRING (22) FIXED;
  END_TYPE;

  TYPE IfcLabel = STRING;
  END_TYPE;

  TYPE IfcText = STRING;
  END_TYPE;

  TYPE IfcObjectTypeEnum = ENUMERATION OF
    (PRODUCT,
     PROCESS,
     CONTROL,
     RESOURCE,
     ACTOR,
     GROUP,
     PROJECT,
     NOTDEFINED);
  END_TYPE;

  ENTITY IfcObject
    ABSTRACT SUPERTYPE
    SUBTYPE OF(IfcRoot);
      ObjectType     : OPTIONAL IfcLabel;
    INVERSE
      HasAssignments : SET OF IfcRelAssigns FOR RelatedObjects;
    WHERE
      WR1 : SIZEOF(QUERY(temp <* IsDefinedBy | 'IFC2X2_FINAL.IFCRELDEFINESBYTYPE' IN TYPEOF(temp))) <= 1;
  END_ENTITY;

  ENTITY IfcRoot
    ABSTRACT SUPERTYPE OF (ONEOF(IfcObject, IfcRelationship));
      GlobalId     : IfcGloballyUniqueId;
      Name         : OPTIONAL IfcLabel;
      Description  : OPTIONAL IfcText;
      OwnerHistory : fp_apply_owner_history;
    UNIQUE
      UR1 : GlobalId;
  END_ENTITY;

  ENTITY IfcRelationship
    SUBTYPE OF(IfcRoot);
  END_ENTITY;

  ENTITY IfcRelAssigns
    ABSTRACT SUPERTYPE
    SUBTYPE OF(IfcRelationship);
      RelatedObjects     : SET [1:?] OF IfcObject;
      RelatedObjectsType : OPTIONAL IfcObjectTypeEnum;
    WHERE
      WR1 : IfcCorrectObjectAssignment(RelatedObjectsType, RelatedObjects);
  END_ENTITY;

  ENTITY IfcRelAssignsToProduct
    SUBTYPE OF(IfcRelAssigns);
      RelatingProduct : IfcProduct;
    WHERE
      WR1 : SIZEOF(QUERY(Temp <* SELF\IfcRelAssigns.RelatedObjects | RelatingControl :=: Temp)) = 0;
  END_ENTITY;

  ENTITY IfcProduct
    ABSTRACT SUPERTYPE
    SUBTYPE OF(IfcObject);
      ObjectPlacement : OPTIONAL fp_place_object;
      Representation  : OPTIONAL fp_represent_product;
    INVERSE
      ReferencedBy    : SET OF IfcRelAssignsToProduct FOR RelatingProduct;
  END_ENTITY;

  ENTITY fp_apply_owner_history;
  END_ENTITY;

  ENTITY fp_place_object;
  END_ENTITY;

  ENTITY fp_represent_product;
  END_ENTITY;

END_SCHEMA;

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