About Measurement Data Snapshots
Measurement data snapshots are used to capture measurement data for settlement accounts as of a specific point in time, such as the when the data was used for initial settlement or when the account was billed.
Measurement data snapshots can be created either as part of Meter Data Management usage transaction processing or batch processing. See Creating Measurement Data Snapshots for more information.
There are two main types of measurement data snapshots: Interval and Scalar.
Interval Measurement Data Snapshots
Interval measurement data snapshots are defined by:
- Measurement Data Snapshot Type: The measurement data snapshot type for this snapshot
- Usage Subscription: The usage subscription associated with the measurement data captured by the measurement data snapshot
- Service Point ID: The service point associated with the measurement data captured by the measurement data snapshot
- Measuring Component ID: The measuring component from which the measurement data captured by the measurement data snapshot originated
- Transaction ID: The transaction ID for the transaction which triggered creation of the data snapshot (such as an initial measurement, usage transaction, or bill)
- Start Date/Time: The start date/time for period represented by the data snapshot
- Stop Date/Time: The stop date/time for period represented by the data snapshot
- Start Date Local : The start date/time for period represented by the data snapshot represented in local time (if different), used in aggregation processing
- Missing Interval: A flag that indicates if the measurement data snapshot contains missing interval
- Irregular Data: A flag that indicates if the measurement data snapshot contains irregular data
- Values: The interval values for the measurement data captured by the measurement data snapshot. See below for more information about interval measurement data snapshot values.
Interval Measurement Data Snapshot Values
The UOM, TOU, and SQI used to identify measurement values are defined on the measurement data snapshot’s type.
Interval measurement data snapshots can contain up to 100 interval values. The interval size of the intervals captured on the data snapshot is defined on the measurement data snapshot’s type. The table below lists the maximum duration of snapshots for different common interval sizes (rounded down and based on 96 intervals).
| Interval Size | Maximum Measurement Snapshot Duration (rounded down) |
|---|---|
| 01:00:00 (1 hour intervals) | 4 days |
| 00:30:00 (30 minute intervals) | 2 days |
| 00:15:00 (15 minute intervals) | 1 day |
| 00:05:00 (5 minute intervals) | 8 hours |
Scalar Measurement Data Snapshots
Scalar measurement data snapshots are defined by:
- Measurement Data Snapshot Type: The measurement data snapshot type for this snapshot
- Usage Subscription: The usage subscription associated with the measurement data captured by the measurement data snapshot
- Service Point ID: The service point associated with the measurement data captured by the measurement data snapshot
- Measuring Component ID: The measuring component from which the measurement data captured by the measurement data snapshot originated
- Transaction ID: The transaction ID for the transaction which triggered creation of the data snapshot (such as an initial measurement, usage transaction, or bill)
- Start Date/Time: The start date/time for the period represented by the data snapshot
- Stop Date/Time: The stop date/time for the period represented by the data snapshot
- Start Date Local : The start date/time for period represented by the data snapshot represented in local time (if different), used in aggregation processing
- Stop Date Local : The stop date/time for period represented by the data snapshot represented in local time (if different), used in aggregation processing
- Irregular Data: A flag that indicates if the measurement data snapshot contains irregular data
- Last Updated: The date and time on which the measurement data snapshot was last updated
- Unit of Measure: The unit of measurement (UOM) for the measurement data captured by the measurement data snapshot
- Time of Use: The time of use (TOU) for the measurement data captured by the measurement data snapshot
- Service Quantity Identifier: The service quantity identifier (SQI) for the measurement data captured by the measurement data snapshot
- Value: The scalar value for the measurement data captured by the measurement data snapshot