# TheDexer Data Warehouse (DDW)

The Dexer Data Warehouse (DDW) is a system that plays a crucial role in the functioning of Modules by providing them with external data inputs, specifically market data. Data warehouses are commonly used in businesses and organizations to facilitate data-driven decision-making.

The primary function of the Dexer Data Warehouse is to trigger the execution of Module logics. Modules rely on the Dexer Data Warehouse to obtain the necessary data for executing trades. It is an integral part of the Dexer Infrastructure, contributing to decision-making processes.

To access DeFi data required for executing Module logics, the Dexer Data Warehouse retrieves information from various cryptocurrency APIs. This data is continuously available, enabling the system to operate 24/7.

Additionally, the Dexer Data Warehouse serves as the initiator for the execution of Dexer Smart Contracts by acting as their caller.


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