> ## Documentation Index
> Fetch the complete documentation index at: https://docs.activeviam.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Cubes

There are two cubes which are tied together via FRTBCombinedCube:

* The **PLCube** for recent data at the trade level (where investigations and sign-off can take place)
* The **PLSummaryCube** for historical data at the book and legal entity levels (to fill out one-year history)
* The **FRTBCombinedCube** seamlessly ties the two together.

## PL Cube

The PL Cube:

* Collects recent data at the trade (or position) level, including the VaR P\&L vectors.
* It is expected that this cube will be customized to support analysing exceptions/outliers.
* PL Cube data can be exported via PLCubeExport DEE Template Order found within the
  directory `frtb-application/src/main/resources/DEETemplateOrders/PLCubeExport.json` [For details, see Using DEE Template Orders](../../../dev/dev-ref-impl/dev-dlc/using-dee-template-orders)

## PL Summary Cube

The PL Summary Cube:

* Collects aggregated data with a long history (at least the 1 year required by the regulations) at the desk and firm-wide levels. Including:
  * Daily P\&L values (actual, hypothetical, and risk-theoretical).
  * Daily VaR P\&L vectors

## Combined Cube

The Combined Cube:

* Includes the analytics required for P\&L Attribution Tests and Backtesting. Including:
  * The Spearman correlation metric; i.e. the correlation between Risk-Theoretical P\&L and Hypothetical P\&L.
  * The Kolmogorov-Smirnov test metric, i.e. the similarity of the distributions of Risk-Theoretical P\&L and Hypothetical P\&L.
  * A count of the number of exceptions when comparing the Actual P\&L and Hypothetical P\&L against the VaR at the 97.5% and 99% confidence levels.