[Online analytical processing](https://en.wikipedia.org/wiki/Online_analytical_processing) is the term used for a [[Data Modeling|data model]] that aggregates data in a way that makes it easier and faster to query across multiple dimensions. For this reason, OLAP systems are mostly optimized for reading the data and are used primarily for reporting and analysis. %% wiki footer: Please don't edit anything below this line %% ## This note in GitHub <span class="git-footer">[Edit In GitHub](https://github.dev/data-engineering-community/data-engineering-wiki/blob/main/Concepts/Data%20Processing/Online%20Analytical%20Processing.md "git-hub-edit-note") | [Copy this note](https://raw.githubusercontent.com/data-engineering-community/data-engineering-wiki/main/Concepts/Data%20Processing/Online%20Analytical%20Processing.md "git-hub-copy-note")</span> <span class="git-footer">Was this page helpful? [👍](https://tally.so/r/mOaxjk?rating=Yes&url=https://dataengineering.wiki/Concepts/Data%20Processing/Online%20Analytical%20Processing) or [👎](https://tally.so/r/mOaxjk?rating=No&url=https://dataengineering.wiki/Concepts/Data%20Processing/Online%20Analytical%20Processing)</span>