Natural language names
State Enum
Enumération des types d'accessibilité à l'objet
Semantic definitions at the type
Type definition

The IfcStateEnum enumeration identifies the state or accessibility of the object (for example, read/write, locked).

Valid enumerations are:

HISTORY  New enumeration in IFC2.0.
IFC2x3 CHANGE  This concept was initially introduced in IFC2.0 as IfcModifiedFlag of type BINARY(3) FIXED and has been modified in R2x3 to an enumeration. It was initially introduced as a first step towards providing facilities for partial model exchange and is intended for use primarily by a model server so that an application can identify the state of the object.
Enumeration definition
READWRITEObject is in a Read-Write state. It may be modified by an application.
READONLYObject is in a Read-Only state. It may be viewed but not modified by an application.
LOCKEDObject is in a Locked state. It may not be accessed by an application.
READWRITELOCKEDObject is in a Read-Write-Locked state. It may not be accessed by an application.
READONLYLOCKEDObject is in a Read-Only-Locked state. It may not be accessed by an application.
Formal representations
XML Specification
 <xs:simpleType name="IfcStateEnum">
  <xs:restriction base="xs:string">
   <xs:enumeration value="readwrite"/>
   <xs:enumeration value="readonly"/>
   <xs:enumeration value="locked"/>
   <xs:enumeration value="readwritelocked"/>
   <xs:enumeration value="readonlylocked"/>
EXPRESS Specification

Link to EXPRESS-G diagram EXPRESS-G diagram

References  References: IfcSimplePropertyTemplate IfcOwnerHistory

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