Through the Event Manager, you can indicate the events, dimensions, and ratios whose variations you wish to track over time. On the Top Movers tab, you can track the metrics that are major movers on your site.

By default, you can track standard deviations for daily event changes only.

• The Top Movers tab is available if you licensed cxImpact.
• If you licensed cxView, you can elect to track events, dimensions, and ratios on an hourly or daily basis.

The data for computing standard deviations can significantly impact your storage requirements. For this reason, standard deviations must be configured for each object you wish to monitor. To create or edit deviations, click the Top Movers tab in the Event Manager.

When a mover is configured and enabled, Tealeaf continuously calculates the standard deviations for the selected data. When sufficient data has been accumulated, you can generate reports on these deviations.

Limitations

The following limitations apply to the use of movers.

• Movers are only calculated for counts of events, not event values. For dimensions, movers are calculated on the count of values.

  Note: The creation and reporting on hourly, dimension, and ratio movers is an enhancement that is associated with cxView, a separately licensed component of the Tealeaf CX platform.

• To create Top Movers for dimensions, you must specify a whitelist and select values to include in deviations for the following reasons:
  • To limit data storage, you may want to limit the whitelist values to include only the most statistically significant ones. For example, from a list of 50 states, sales from only 10 of them may provide sufficient data for your mover calculations.
  • There is a system-wide limit on the number of movers that can be calculated. By limiting mover calculations to the important dimensional values, you preserve available mover calculations for important data.

    Note: If a dimension does not have a whitelist and items in the list that were selected for tracking in the Top Mover, the dimension does not appear among the list of objects for which you can create a Top Mover.

Data management for Top Movers

The Top Movers feature enables you to flag the events and dimensions whose deviations you want to track over time. Instead of monitoring the values themselves, Top Movers and corresponding reports can be configured to monitor the changes in values, so that you can focus on the biggest movers and most important metrics.

In Tealeaf environments with many events and dimensions, however, it can be challenging to identify the events and dimensions whose changes are important to monitor. Through the Portal, you can enable the automatic creation and tracking of Top Movers. By monitoring the Top Movers that are most active across all of your events and dimensions, you can enable Tealeaf to alert you on what is important to monitor in your tracked web application.

At the time that this feature is enabled, a Top Movers is created for each active and reportable event and dimension in the system, and tracking for each of them is also enabled. Top Movers are created and enabled for all later created events and dimensions, too. With automatic Top Mover creation, you can automatically monitor these changes in value of any tracked event or dimension at any time.

• Top Movers are created through the Event Manager.
• After the Top Mover data was collected and calculated, it is immediately available for reporting and can be highlighted in one of the available reports for all top movers.

Note: Enabling this option in an environment with many events and dimensions can affect system performance and storage.

Overview of calculations

Top Movers are calculated by gathering a statistically significant number of values for the monitored event or dimension over time and then calculating the standard deviation for the sampled values.

Top Movers can be calculated on a daily or an hourly basis. Tracking hourly Top Movers requires more storage capacity. The calculated value of the standard deviation for today is based on the values that are calculated from the configured set of prior days.

Note: Top Movers can be calculated based on a consecutive days or week-over-week method. The method is configurable.

The number of days over which the Top Mover is calculated is called the rolling window.

• By default, the minimum number of days to complete a valid calculation is 4, and the maximum is 16.
• The size of the rolling window may impact how quickly the Data Collector is able to complete its updates.
• It does not affect Top Mover data storage.

Storage

Top Movers are stored in the following two database tables in the Reports (TL_REPORTS) database:

• TD_DEVIATION
• TD_DEVIATION_LT

Data implications

For each Top Mover, one row is written to the database for the time interval (per hour/day for hourly Top Movers or per day for daily Top Movers).

Updates

Depending on the type of Top Mover, calculations are updated according to the following schedule:

• Hourly Top Movers are updated 30 minutes after each hour.
• Daily Top Movers are updated at 4:30 in the morning by default.
  • The scheduling of this Data Collector run is configurable.

    Note: Calculations are made based on the timestamps that are associated with the event or dimension recording.

Reports: Monitoring Top Mover data growth over time

Through the Options dialog of the Top Movers report, you can create a report that contains all hourly or all daily Top Movers.

In the Reports database, your DBA must monitor the growth of the following tables:

• TD_DEVIATION
• TD_DEVIATION_LT

You can also monitor the overall growth of the Reports database, although that contains quite a bit of other information.