# Data lake

<figure><img src="/files/dZVrn2ZTsnqS8sQfuQD2" alt=""><figcaption></figcaption></figure>

The Unizin Data Platform's [event data pipeline](/products/data-and-analytics/unizin-data-platform/system-overview/event-data-pipeline.md) and [context data pipeline](/products/data-and-analytics/unizin-data-platform/system-overview/context-data-pipeline.md) maintain a data lake that serves as a foundational store for ad hoc inquiry.

The purpose of the UDP Data lake is to act as a comprehensive store for all data imported by a UDP instance for all time. The data lake is composed of two major components:

1. The UDP Context store, which hosts all context data in a single, relational database
2. The UDP Event store, which hosts all event data in a single table

In this section, we cover the design of the UDP data lake and, for Unizin consortium members, document how they can access each in their SaaS implementation.


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