IFC 4.3.0.1 (IFC4X3) development

8.2.3.1 IfcApproval

8.2.3.1.1 Semantic definition

An IfcApproval represents information about approval processes such as for a plan, a design, a proposal, or a change order in a construction or facilities management project. IfcApproval is referenced by IfcRelAssociatesApproval in IfcControlExtension schema, and thereby can be related to all subtypes of IfcRoot. An approval may also be given to resource objects using IfcResourceApprovalRelationship

8.2.3.1.2 Entity inheritance

8.2.3.1.3 Attributes

# Attribute Type Description
IfcApproval (14)
1 Identifier OPTIONAL IfcIdentifier

A computer interpretable identifier by which the approval is known.

2 Name OPTIONAL IfcLabel

A human readable name given to an approval.

3 Description OPTIONAL IfcText

A general textual description of a design, work task, plan, etc. that is being approved for.

4 TimeOfApproval OPTIONAL IfcDateTime

Date and time when the result of the approval process is produced.

5 Status OPTIONAL IfcLabel

The result or current status of the approval, e.g. Requested, Processed, Approved, Not Approved.

6 Level OPTIONAL IfcLabel

Level of the approval e.g. Draft v.s. Completed design.

7 Qualifier OPTIONAL IfcText

Textual description of special constraints or conditions for the approval.

8 RequestingApproval OPTIONAL IfcActorSelect

The actor that is acting in the role specified at IfcOrganization or individually at IfcPerson and requesting an approval.

9 GivingApproval OPTIONAL IfcActorSelect

The actor that is acting in the role specified at IfcOrganization or individually at IfcPerson and giving an approval.

HasExternalReferences SET [0:?] OF IfcExternalReferenceRelationship FOR RelatedResourceObjects

Reference to external references, e.g. library, classification, or document information, that are associated to the Approval.

ApprovedObjects SET [0:?] OF IfcRelAssociatesApproval FOR RelatingApproval

Reference to the IfcRelAssociatesApproval instances associating this approval to objects (subtypes of IfcRoot

ApprovedResources SET [0:?] OF IfcResourceApprovalRelationship FOR RelatingApproval

The set of relationships by which resource objects that are are approved by this approval are known.

IsRelatedWith SET [0:?] OF IfcApprovalRelationship FOR RelatedApprovals

The set of relationships by which this approval is related to others.

Relates SET [0:?] OF IfcApprovalRelationship FOR RelatingApproval

The set of relationships by which other approvals are related to this one.

Table 8.2.3.1.A

8.2.3.1.4 Formal propositions

Name Description
HasIdentifierOrName

Either Identifier or Name (or both) by which the approval is known shall be given.

EXISTS (Identifier) OR EXISTS (Name)
Table 8.2.3.1.B

8.2.3.1.5 Formal representation

ENTITY IfcApproval;
	Identifier : OPTIONAL IfcIdentifier;
	Name : OPTIONAL IfcLabel;
	Description : OPTIONAL IfcText;
	TimeOfApproval : OPTIONAL IfcDateTime;
	Status : OPTIONAL IfcLabel;
	Level : OPTIONAL IfcLabel;
	Qualifier : OPTIONAL IfcText;
	RequestingApproval : OPTIONAL IfcActorSelect;
	GivingApproval : OPTIONAL IfcActorSelect;
 INVERSE
	HasExternalReferences : SET [0:?] OF IfcExternalReferenceRelationship FOR RelatedResourceObjects;
	ApprovedObjects : SET [0:?] OF IfcRelAssociatesApproval FOR RelatingApproval;
	ApprovedResources : SET [0:?] OF IfcResourceApprovalRelationship FOR RelatingApproval;
	IsRelatedWith : SET [0:?] OF IfcApprovalRelationship FOR RelatedApprovals;
	Relates : SET [0:?] OF IfcApprovalRelationship FOR RelatingApproval;
 WHERE
	HasIdentifierOrName : EXISTS (Identifier) OR EXISTS (Name);
END_ENTITY;

8.2.3.1.6 References

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8.2.3.1.7 Changelog

  • attribute, GivingApproval
  • attribute, Identifier
  • attribute, RequestingApproval
  • inverse attribute, ApprovedResources
  • inverse attribute, IsRelatedWith
  • where rule, HasIdentifierOrName
  • attribute, ApprovalStatus
  • attribute ApprovalDateTime name, Changed from "ApprovalDateTime" to "Name"
  • attribute ApprovalDateTime optional, Changed from "False" to "True"
  • attribute ApprovalDateTime type, Changed from "IfcDateTimeSelect" to "IfcLabel"
  • attribute ApprovalLevel name, Changed from "ApprovalLevel" to "TimeOfApproval"
  • attribute ApprovalLevel type, Changed from "IfcLabel" to "IfcDateTime"
  • attribute ApprovalQualifier name, Changed from "ApprovalQualifier" to "Status"
  • attribute ApprovalQualifier type, Changed from "IfcText" to "IfcLabel"
  • attribute Identifier name, Changed from "Identifier" to "Qualifier"
  • attribute Identifier optional, Changed from "False" to "True"
  • attribute Identifier type, Changed from "IfcIdentifier" to "IfcText"
  • attribute Name name, Changed from "Name" to "Level"
  • attribute Name optional, Changed from "False" to "True"
  • inverse attribute Actors name, Changed from "Actors" to "HasExternalReferences"
  • inverse attribute Actors type, Changed from "SET OF [0:?] IfcApprovalActorRelationship FOR Approval" to "SET OF [0:?] IfcExternalReferenceRelationship FOR RelatedResourceObjects"
  • inverse attribute IsRelatedWith name, Changed from "IsRelatedWith" to "ApprovedObjects"
  • inverse attribute IsRelatedWith type, Changed from "SET OF [0:?] IfcApprovalRelationship FOR RelatedApproval" to "SET OF [0:?] IfcRelAssociatesApproval FOR RelatingApproval"