IfcPerformanceHistoryTypeEnum

BACnet MVD

#### IfcPerformanceHistoryTypeEnum

Natural language names

| Performance History Type Enum
| Enumération des types d'historique de performance

Change log

Item | SPF | XML | Change | Description
--- | --- | --- | --- | ---
IFC2x3 to IFC4
IfcPerformanceHistoryTypeEnum |  |  | ADDED |

##### Semantic definitions at the type

Type definition

This enumeration is used to identify the primary purpose of performance history. The IfcPerformanceHistoryTypeEnum contains the following:

- USERDEFINED: User-defined.
- NOTDEFINED: Undefined.

> HISTORY New enumeration in IFC4

Enumeration definition

Constant | Description
--- | ---
USERDEFINED |
NOTDEFINED |

##### Formal representations

XML Specification
`<xs:simpleType name="IfcPerformanceHistoryTypeEnum">
<xs:restriction base="xs:string">
<xs:enumeration value="userdefined"/>
<xs:enumeration value="notdefined"/>
</xs:restriction>
</xs:simpleType>
`
EXPRESS Specification
`TYPE IfcPerformanceHistoryTypeEnum = ENUMERATION OF (
USERDEFINED,
NOTDEFINED);
END_TYPE;

EXPRESS-G diagram

`

References: IfcPerformanceHistory

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