Overdue data is defined as interval meter reading data that is now deemed as missing as it has not been received from the date it was last expected. It also highlights where no data at all has been received.
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- a periodic channel which is recording data for every interval on a daily basis. If the data is not received for the day before last, then this would be deemed overdue.
- a periodic channel which is recording data for every interval on a monthly basis. If the data is not received for the previous month at the start of the next month, then this would be deemed overdue.
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Creating an Overdue Data Strategy
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Overdue Data Configuration
The Monitoring Strategy Editor also contains an Overdue Data Configuration section that allows you to set the specific configuration to use when finding and managing the overdue data.
| Field | Default | Description |
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| Data Load Frequency | Daily | Specification of the frequency at which data is loaded to the channel. Choose from:
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| Offset (Days) | 1 | Choose the offset between the end date of the missing data period being checked based on the current date. Examples
Here, if data had been received up to and including 21/07/2019, the data would be deemed overdue from the 24/07/2019
Here, if data had been received up to and including 30/06/2019, the data would be deemed overdue from the 05/08/2019. |
| Also include | All unchecked | Define the combination of data values that should be considered missing data. Options include:
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| Auto Fill Data | Off | An on/off toggle to determine whether the system should automatically estimate the data that is deemed to be overdue, based on an average from a historical period (specified below). |
| Auto Fill - Weeks to Average | 4 | Specify the number of weeks that should be used as a basis when calculating the data to use for automatically extrapolating historical data. More information about how this feeds into the system processing that it supports when filling the data can be seen here. |
- Click OK to save the Monitoring Strategy
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Once the Strategy has been set up, Sigma will review the data each night and create any relevant notifications in the Notifications tab |
Overdue Data Notifications
If overdue data is found for one of the strategies, then notifications will be raised that are visible in the Notification Tab.
Where the strategy was configured to auto-fill (estimate) overdue data for you, then the notification will still be raised in a closed state, for you be able to view what the system has done, providing a full audit.
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Where the strategy was configured not to auto-fill all gaps for you, then these can be manually resolved using the "Resolve" functionality available. Highlight the applicable Overdue Data Notification(s) in the list. Click
The Resolve Notifications popup will be displayed, showing a list of the Notifications being resolved.
The graph at the top shows the periodic data for the channel linked to the notification selected. The red area shows the period of time for the missing overdue data. Drag the mouse around the area on the graph to zoom in. Click Actions - Overdue DataUpdate Period Average SettingYou can change the number of Weeks used as a basis for calculating the data to use when filling the overdue period. Select all the Notification records it should apply to then click Update. This will update the period to use when calculating the averaged data to fill the gap.
PreviewIf you want to see what the estimated data will look like, click This will show you what the resolution would look like for the Notification that has been selected in the list. The extrapolated period is highlighted in green.
Drag the mouse around the area to zoom in
Click FillClick The Resolve Notifications pop up appears:
A Note can be optionally entered, if required and will be stored against the Notification. Click OK. The following confirmation popup will be displayed:
Click OK. CancelClick |
