1.7 ExtensionNameValue

WITSML - Extension values Schema. The intent is to allow standard WITSML "named"

extensions without having to modify the schema. A client or server can ignore any name that it

does not recognize but certain meta data is required in order to allow

generic clients or servers to process the value.

Table 1.7-1 Attributes
Name	Type	Notes
Description	String2000	A textual description of the extension.
DTim	TimeStamp	The date-time associated with the value.
Index	int	Indexes things with the same name. That is, 1 indicates the first one, 2 indicates the second one, etc.
MeasureClass	MeasureClass	The kind of the measure. For example, "length". This should be specified if the value requires a unit of measure.
Name	String64	The name of the extension. Each standard name should document the expected measure class. Each standard name should document the expected maximum size. For numeric values the size should be in terms of xsd types such as int, long, short, byte, float or double. For strings, the maximum length should be defined in number of characters. Local extensions to the list of standard names are allowed but it is strongly recommended that the names and definitions be approved by the respective SIG Technical Team before use.
Value	StringMeasure	The value of the extension. This may also include a uom attribute. The content should conform to constraints defined by the data type.

Table 1.7-2 Associations
Association	Notes
From: DtsCalibration. 0..*To: ExtensionNameValue Association
From: DtsMeasurement.DiagnosticParameters 0..*To: ExtensionNameValue Association
From: AbstractObject. To: ExtensionNameValue Dependency
From: FiberPumpActivity.ExtensionNameValue 0..*To: ExtensionNameValue Association
From: DtsInstrumentBox. 0..*To: ExtensionNameValue Association
From: CustomPvtModelParameter.CustomParameterValue 1To: ExtensionNameValue Association
From: FiberOTDR.ExtensionNameValue 0..*To: ExtensionNameValue Association