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Detailed technical information and specifications for the Aletyx Enterprise Build of Kogito and Drools.

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DMN reference

  • Reserved Words - Complete list of reserved keywords and symbols in DMN FEEL expressions
  • Select Expression - Guide to using and optimizing DMN select expressions

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Additional resources

  • Best Practices - Recommended approaches for modeling decisions and processes

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Further reading

A curated, vendor-neutral reading and viewing list for going deeper on business decision and process modeling. Start with the standards, then pick a book and a hands-on tool to practice with.

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Standards & specifications

The authoritative, freely available sources. These are the contracts that DMN-, DRL-, and BPMN-compliant tools (including the Aletyx Enterprise Build) implement.

DMN specification (OMG)

The official Decision Model and Notation standard, including the FEEL expression language and decision table semantics.

BPMN specification (OMG)

The official Business Process Model and Notation standard defining process diagram elements and execution semantics.

bpmn.org

OMG’s BPMN portal with the quick-reference poster, examples, and a list of supporting tools.

DRL & rules (Apache KIE)

Home of Drools, jBPM, and Kogito — the open source engines for DRL rules, DMN decisions, and BPMN processes.

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Learning DMN

Decision Model and Notation is the standard for modeling repeatable business decisions with decision tables, decision requirements diagrams (DRDs), and FEEL.

DMN Method and Style

Bruce Silver’s book and training — the practical reference for building correct, well-structured DMN models.

Real-World Decision Modeling with DMN

Bruce Silver and James Taylor’s deep-dive book on applying DMN to real business problems end to end.

Trisotech — Learn DMN

Free articles, examples, and tutorials on DMN, decision tables, and FEEL from a leading DMN tool vendor.

Camunda DMN tutorial

Approachable introduction to decision tables and DMN with hands-on examples.

What is DMN?

Aletyx’s own primer on DMN and how it fits alongside DRL and BPMN.

DMN Playground

Build and test your first decision model interactively.

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Learning BPMN

Business Process Model and Notation is the standard for modeling and executing end-to-end business processes that orchestrate tasks, decisions, and people.

BPMN Method and Style

Bruce Silver’s book and training — the definitive guide to clear, executable BPMN.

Real-Life BPMN

Jakob Freund and Bernd Rücker’s pragmatic, example-driven introduction to modeling with BPMN (and DMN).

Camunda BPMN tutorial

A thorough, free online BPMN reference covering every symbol with examples.

bpmn.io

Open source BPMN, DMN, and Forms toolkit — render and edit diagrams in the browser.

What is BPMN?

Aletyx’s own primer on BPMN and process automation.

BPMN Playground

Model and run your first process interactively.

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Blogs & thought leaders

The practitioners shaping the decision and process management discipline.

Aletyx blog

Decision and process automation in practice — DMN, BPMN, Kogito, and enterprise AI from the Aletyx team.

James Taylor — Decision Management Solutions

Articles on decision management, DMN, and decision-centric design from the co-author of the DMN standard.

Bruce Silver — Method & Style

Long-running blog on BPMN and DMN modeling practice from the author of the Method and Style books.

Trisotech blog

Regular posts on DMN, BPMN, CMMN, and the broader business automation landscape.

Camunda blog

Process orchestration and automation engineering, with strong BPMN and DMN coverage.

Alex Porcelli

Longtime Drools and Kogito architect — insights on rules engines, KIE, and open source business automation.

Ken Otto

Decision and process automation perspectives on bringing DMN and BPMN to the enterprise.

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Channels & communities

Talks, conferences, and communities where the standards are discussed and applied.

DecisionCAMP

Annual vendor-neutral conference on decision management and DMN — recorded sessions on YouTube.

Building Business Capability (BBC)

The leading conference for business analysis, business rules, and decision management.

Apache KIE community

Mailing lists, chat, and contributor resources for Drools, jBPM, and Kogito.

Camunda Forum

Active community Q&A on BPMN, DMN, and process automation in practice.

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Next steps

Core concepts

Processes, decisions, and rules fundamentals.

Guides

Hands-on walkthroughs for modeling decisions and processes.

FAQ

Concepts, technologies, and how Aletyx fits together.

Getting started

Persona-based paths to learn quickly.