> For the complete documentation index, see [llms.txt](https://framework.aic.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://framework.aic.io/technical-guidelines-code-standards-and-tech-stack/data-and-persistence-standards.md).

# Data and Persistence Standards

## Purpose

This section defines the AIC standard for data storage, access and persistence design.

It covers database choice, ORM usage, migrations, performance and transactional behaviour.

## What This Section Covers

* database selection and persistence patterns
* MongoDB, EF Core and Dapper usage
* schema governance and concurrency
* audit, soft delete and test data practices

## Use This Section When

Use this section when:

* selecting a persistence approach
* reviewing query and schema design
* setting data access standards