IfcDataOriginEnum

BACnet MVD

#### IfcDataOriginEnum

Natural language names

| Data Origin Enum
| Enumération des origines des données temporelles

Change log

Item | SPF | XML | Change | Description
--- | --- | --- | --- | ---
IFC2x3 to IFC4
IfcDataOriginEnum |  |  | MOVED | Schema changed from IFCTIMESERIESRESOURCE to IFCDATETIMERESOURCE.

##### Semantic definitions at the type

Type definition

IfcDataOriginEnum identifies the origin of time data.

> HISTORY New enumeration in IFC2x2.

Enumeration definition

Constant | Description
--- | ---
MEASURED | The origin of the time data is a measurement device.
PREDICTED | The time data are a prediction.
SIMULATED | The origin of the time data is a simulation.
USERDEFINED |
NOTDEFINED | The origin of the time data is undefined.

##### Formal representations

XML Specification
`<xs:simpleType name="IfcDataOriginEnum">
<xs:restriction base="xs:string">
<xs:enumeration value="measured"/>
<xs:enumeration value="predicted"/>
<xs:enumeration value="simulated"/>
<xs:enumeration value="userdefined"/>
<xs:enumeration value="notdefined"/>
</xs:restriction>
</xs:simpleType>
`
EXPRESS Specification
`TYPE IfcDataOriginEnum = ENUMERATION OF (
MEASURED,
PREDICTED,
SIMULATED,
USERDEFINED,
NOTDEFINED);
END_TYPE;

EXPRESS-G diagram

`

References: IfcSchedulingTime IfcTimeSeries

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