> ## 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.

# Atoti Concepts Overview

This section presents key concepts that are incorporated into the Atoti in-memory analytical database.

An overview of the most important concepts is presented in
[Atoti Concepts in a Nutshell](./concepts_in_a_nutshell).
Reading this page is highly recommended before diving into the pages that present more specific concepts.

| Concept                                           | Applies to         |
| ------------------------------------------------- | ------------------ |
| [Data Versioning (MVCC)](./data_versioning)       | datastore and cube |
| [Partitioning and NUMA awareness](./partitioning) | datastore and cube |