# Preparation \[Planned deprecation]

:::callout{theme="warning" title="Planned deprecation"}
Preparation is in the [planned deprecation](../../platform-overview/development-life-cycle/index.md) phase of development and will be deprecated on May 4 2027. Full support remains available. We recommend migrating your workflows to Pipeline Builder for cleaning and preparing data and to take advantage of [Marketplace](../../marketplace/overview/index.md) support.
:::

Preparation is an interactive tool for cleaning and preparing data. Cleaning refers to fixing data quality issues, and preparing refers to manipulating data to make it usable for a specific analytic task.

The dataset shown below comes from The Meteoritical Society via the [NASA Data Portal ↗](https://catalog.data.gov/dataset/meteorite-landings).

![Sample of Preparation cleaning workflow](../../../assets/fefc4c0efd670bc689e207162d13faa1fcac7700166ed87612f60587a90b8f83.webp)

## Terminology

The following terms are useful to know before using the Preparation tool:

* **Preparation:** A cleaning/preparation session

* **Clean:** Fix data quality issues in a dataset

* **Prepare:** Adapt a dataset for a specific use

* **Change:** An individual clean/prepare step

* **Changelog:** All the changes made within a preparation