# Class CIM_BaseMetricValue
extends CIM_ManagedElement

Each CIM_BaseMetricValue object represents the instance value of a metric. Since the gathering of metric information can involve large quantities of information there may be many instances of this class. The use of this class as an instrumentation source may be inefficient unless the rate of metrics are known. The length of time a CIM_BaseMetricValue instance exists after the metric information is captured is not defined and is implementation dependent. Most metric data values change over time. There are two ways of mapping this into CIM_BaseMetricValue objects: The value for the next point in time may use the same object and just change its properties (such as the value or timestamp), or the existing objects remain unchanged and a new object is created for the new point in time. The first method is typically used for snapshot data and the second method for historical data. Which method is used, is indicated by the Volatile property.

### Table of Contents
Hierarchy
Direct Known Subclasses
Class Qualifiers
Class Properties
Class Methods

## Class Hierarchy

CIM_ManagedElement
|
+--CIM_BaseMetricValue

## Direct Known Subclasses

CIM_AggregationMetricValue

## Class Qualifiers

Name | Data Type | Value
--- | --- | ---

Description

string

Each CIM_BaseMetricValue object represents the instance value of a metric. Since the gathering of metric information can involve large quantities of information there may be many instances of this class. The use of this class as an instrumentation source may be inefficient unless the rate of metrics are known. The length of time a CIM_BaseMetricValue instance exists after the metric information is captured is not defined and is implementation dependent. Most metric data values change over time. There are two ways of mapping this into CIM_BaseMetricValue objects: The value for the next point in time may use the same object and just change its properties (such as the value or timestamp), or the existing objects remain unchanged and a new object is created for the new point in time. The first method is typically used for snapshot data and the second method for historical data. Which method is used, is indicated by the Volatile property.

UMLPackagePath | string | CIM::Metrics::BaseMetric
Version | string | 2.19.0

## Class Properties

### Local Class Properties

Name | Data Type | Default Value | Qualifiers
--- | --- | --- | ---
Name | Data Type | Value
BreakdownDimension | string |
Description | string | If present, specifies one BreakdownDimension from the BreakdownDimensions array defined in the associated CIM_ BaseMetricDefinition. This is the dimension along which this set of metric values is broken down. For a description of the concept, see the class CIM_BaseMetricDefinition.
BreakdownValue | string |
Description | string | Defines a value of the BreakdownDimension property defined for this metric value instance. For instance, if the BreakdownDimension is "TransactionName", this property could name the actual transaction to which this particular metric value applies.
Duration | datetime |
Description | string | Property that represents the time duration over which this metric value is valid. This property should not exist for timestamps that apply only to a point in time but should be defined for values that are considered valid for a certain time period (ex. sampling). If the "Duration" property exists and is nonNull, the TimeStamp is to be considered the end of the interval.
ModelCorrespondence | string | CIM_BaseMetricDefinition.TimeScope, CIM_BaseMetricValue.TimeStamp
InstanceID | string |

Description

string

Within the scope of the instantiating Namespace, InstanceID opaquely and uniquely identifies an instance of this class. In order to ensure uniqueness within the NameSpace, the value of InstanceID SHOULD be constructed using the following 'preferred' algorithm: : Where and are separated by a colon ':', and where MUST include a copyrighted, trademarked or otherwise unique name that is owned by the business entity creating/defining the InstanceID, or is a registered ID that is assigned to the business entity by a recognized global authority (This is similar to the <Schema Name>_<Class Name> structure of Schema class names.) In addition, to ensure uniqueness MUST NOT contain a colon (':'). When using this algorithm, the first colon to appear in InstanceID MUST appear between and . is chosen by the business entity and SHOULD not be re-used to identify different underlying (real-world) elements. If the above 'preferred' algorithm is not used, the defining entity MUST assure that the resultant InstanceID is not re-used across any InstanceIDs produced by this or other providers for this instance's NameSpace. For DMTF defined instances, the 'preferred' algorithm MUST be used with the set to 'CIM'.

Key | boolean | true
Override | string | InstanceID
MeasuredElementName | string |

Description

string

A descriptive name for the element to which the metric value belongs (i.e., the measured element). This property is required by behavior if there is no association defined to a ManagedElement, but may be used in other cases to provide supplemental information. This allows metrics to be captured independently of any ManagedElement. An example is where a metric value belongs to a combination of elements, such as the input and output ports of the traffic in a switch. If there are multiple ManagedElements associated with the metric value, then usually there is one that naturally belongs to the metric value and that one should be used to create the supplemental information. The property is not meant to be used as a foreign key to search on the measured element. Instead, the association to the ManagedElement should be used.

MetricDefinitionId | string |
Description | string | The key of the BaseMetricDefinition instance for this CIM_BaseMetricValue instance value.
ModelCorrespondence | string | CIM_BaseMetricDefinition.Id
Required | boolean | true
MetricValue | string |
Description | string | The value of the metric represented as a string. Its original data type is specified in CIM_BaseMetricDefinition.
Required | boolean | true
TimeStamp | datetime |

Description

string

Identifies the time when the value of a metric instance is computed. Note that this is different from the time when the instance is created. For a given CIM_BaseMetricValue instance, the TimeStamp changes whenever a new measurement snapshot is taken if Volatile is true. A managmenet application may establish a time series of metric data by retrieving the instances of CIM_BaseMetricValue and sorting them according to their TimeStamp.

ModelCorrespondence | string | CIM_BaseMetricDefinition.TimeScope, CIM_BaseMetricValue.Duration
Volatile | boolean |
Description | string | If true, Volatile indicates that the value for the next point in time may use the same object and just change its properties (such as the value or timestamp). If false, the existing objects remain unchanged and a new object is created for the new point in time.

### Inherited Properties

Name | Data Type | Class Origin
--- | --- | ---
Caption | string | CIM_ManagedElement
Description | string | CIM_ManagedElement
ElementName | string | CIM_ManagedElement

## Class Methods