Measurements

A component that contains statistical or measurement information for TARGET resources that are being monitored. The measurement should be based upon a defined metric (a method of measurement).

Property	Type	Required	Description
result	xs:any	Yes	The quantitative or qualitative result of a measurement from applying the associated metric
metric	cadf:Metric	Dependent	The property describes the metric used in generating the measurement result. Required if not metricId
metricId	cadf:Identifier	Dependent	This property identifies a CADF Metric by reference and whose definition exists elsewhere. Required if not metric
calculatedBy	cadf:Resource	No	An optional description of the resource that calculated the measurement

Metrics

The Metric data type describes the rules and processes for measuring some activity or resource, resulting in the generation of some values (captured by the Measurement type).

Property	Type	Required	Description
metricId	cadf:identifier	Yes	The identifier for the metric.
unit	xs:string	Yes	The metrics unit (e.g., “ms”, “Hz”, “GB”, etc.)
name	xs:string	No	A descriptive name for metric
annotations	cadf:map	No	User-defined metric information.

Serialisation

{
    "typeURI": "http://schemas.dmtf.org/cloud/audit/1.0/log",
    ...,
    "metrics": [
        {
            "metricId": "myuuid://metric.org/1234",
            "unit": "GB",
            "name": "Storage Capacity in Gigabytes"
        }
    ],
    ...,
    "events": [
        {
            "typeURI": "http://schemas.dmtf.org/cloud/audit/1.0/event",
            ...,
            "measurements": [
                {
                    "result": "10",
                    "metricId": "myuuid://metric.org/1234"
                }
            ]
        }
    ]
}