> ## 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.

# Global datastore definition

This section describes stores that are common to all cubes.  This includes FX rates and trade booking.

## FX Rates

The FX rates are stored in the [FXRates](./fxrates) store.

## Trade Booking

The [TradeMapping](./trademapping) store maps trades to books and legal entities by **TradeId** and **AsOfDate**.

**Note:** This mapping is only used for the trade-level cubes.
In the IMA, there are some summary cubes that do not include a trade-level and, for these, each fact is at the book and legal entity level.

The multi-level book organizational hierarchy is indexed by **Book** and **AsOfDate**.
It is built from the [BookParentChild](./bookparentchild) store
and stored in the [BookHierarchy](./bookhierarchy) store.

The multi-level legal entity organizational hierarchy is indexed by **LegalEntity** and **AsOfDate**.
It is built from the [LegalEntityParentChild](./legalentityparentchild) store
and stored in the [LegalEntityHierarchy](./legalentityhierarchy) store.

The [LegalEntityAttributes](./legal-entity-attributes) store provides a description of the legal entities.