> ## 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.

# Core Concepts

> Core concepts of the Aletyx Enterprise Build of Kogito and Drools - how decision and process automation work, for architects and senior developers.

This section explains how the Aletyx Enterprise Build of Kogito and Drools works
structurally and operationally. It's aimed at architects and senior developers
designing mission-critical decision and process systems, and it grounds the rest
of the documentation in a shared vocabulary.

## Decision automation

Rules-based systems deliver **completely predictable outcomes** for a given set
of inputs. Aletyx supports several complementary ways to author decision logic:

<CardGroup cols={3}>
  <Card title="DRL" icon="code" href="https://docs.aletyx.ai/core/decisions/drl/">
    The native Drools Rule Language for complex inference.
  </Card>

  <Card title="Decision tables" icon="table-cells" href="https://docs.aletyx.ai/core/decisions/drl/decision-tables/">
    Spreadsheet-style rule authoring for business users.
  </Card>

  <Card title="DMN" icon="diagram-project" href="https://docs.aletyx.ai/core/decisions/dmn/">
    Standards-based visual decision modeling.
  </Card>
</CardGroup>

## Process automation

**BPMN**-based orchestration manages both automated and human tasks, with
process variables carrying data between steps.

* [BPMN basics](https://docs.aletyx.ai/core/processes/basic-bpmn/) — the building
  blocks of a process model.
* [Advanced BPMN](https://docs.aletyx.ai/core/processes/advanced-bpmn/) —
  events, gateways, and sub-processes.
* [Process architecture](https://docs.aletyx.ai/core/processes/architecture/compact-architecture/)
  — compact and event-driven styles.

## Integration patterns

Rules and processes combine in several patterns: rule-driven workflows,
process-embedded rules, and event-driven architectures.

* [Integration patterns](https://docs.aletyx.ai/core/integration/)
* [Decision & process integration](https://docs.aletyx.ai/core/integration/decision-process/)
* [Event-driven integration](https://docs.aletyx.ai/core/integration/event-driven/)

## Next steps

<CardGroup cols={2}>
  <Card title="Decisions guide" icon="diagram-project" href="/docs/guides/decisions">
    Author, test, and deploy decision models.
  </Card>

  <Card title="Processes guide" icon="arrows-spin" href="/docs/guides/processes">
    Orchestrate long-running business processes.
  </Card>

  <Card title="Tech stack" icon="layer-group" href="/docs/tech-stack">
    The Drools, jBPM, and Kogito builds behind the platform.
  </Card>

  <Card title="DMN vs. DRL vs. BPMN" icon="circle-question" href="/docs/faq/concepts/dmn-drl-bpmn">
    When to use each modeling approach.
  </Card>
</CardGroup>