> ## Documentation Index
> Fetch the complete documentation index at: https://aletyx.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# What is the difference between Drools, Kogito, and KIE?

> How Drools, Kogito, and KIE relate: KIE is the foundation platform, Drools is the rules engine, and Kogito is the cloud-native runtime that packages them.

They are layers of the same ecosystem rather than competing products:

* **KIE** is the umbrella platform and the shared APIs, tooling, and runtime that
  everything else is built on.
* **Drools** is the rules engine within KIE — it evaluates business rules and
  decisions.
* **Kogito** is the cloud-native runtime that packages Drools rules and jBPM
  processes into compiled, container-ready services.

In short: KIE is the foundation, Drools is the rules brain, and Kogito is the
modern, cloud-native way to run it all.

## Where to go next

<CardGroup cols={2}>
  <Card title="What is KIE?" icon="layer-group" href="/docs/faq/concepts/what-is-kie">
    The umbrella platform that everything else is built on.
  </Card>

  <Card title="What is Drools?" icon="gears" href="/docs/faq/concepts/what-is-drools">
    The rules engine that evaluates business rules and decisions.
  </Card>

  <Card title="What is Kogito?" icon="cube" href="/docs/faq/concepts/what-is-kogito">
    The cloud-native runtime that packages rules and processes.
  </Card>

  <Card title="Drools" icon="gears" href="/docs/drools/overview">
    Component details for the Drools rules engine.
  </Card>

  <Card title="Kogito" icon="cube" href="/docs/components/kogito">
    Component details for the Kogito cloud-native runtime.
  </Card>

  <Card title="Tech Stack" icon="server" href="/docs/tech-stack">
    How these layers fit together in the Aletyx stack.
  </Card>
</CardGroup>