#dmn-engine #dmn

app dmntk

DMNTK | Decision Model and Notation Toolkit

30 releases

0.3.0 Jun 29, 2023
0.1.2 May 16, 2023
0.1.1 Feb 10, 2023
0.0.52 Dec 16, 2022
0.0.11 Jun 24, 2021

#32 in HTTP server

Download history 1/week @ 2023-06-03 26/week @ 2023-06-10 30/week @ 2023-06-17 75/week @ 2023-06-24 42/week @ 2023-07-01 2/week @ 2023-07-08 6/week @ 2023-07-15 6/week @ 2023-07-22 2/week @ 2023-07-29 9/week @ 2023-08-05 30/week @ 2023-08-12 30/week @ 2023-08-26 60/week @ 2023-09-02 6/week @ 2023-09-09 1/week @ 2023-09-16

97 downloads per month


24K SLoC

Decision Model and Notation Toolkit Release

Crates.io Code coverage build Linux build Windows build MacOs MIT licensed Apache 2.0 licensed Contributor Covenant


DMNTK is a suite of tools designed to evaluate, build, and test decision models. It is constructed based on the Decision Model and Notation (DMN™) specification, which is an industry standard governed by the Object Management Group (OMG®).

DMNTK aims to be performant, reliable, and fully compliant with the DMN™ specification, ensuring accurate evaluation of decision models. All tools are implemented in Rust, a programming language known for its reliability and efficiency.

DMNTK offers a range of features, including DMN model evaluation, decision table evaluation, and FEEL expression evaluation. It also includes functionality for parsing, validating, and recognizing DMN models, decision tables, and FEEL expressions. Users can test DMN models, decision tables, and FEEL expressions, and export them to HTML format.

DMNTK provides a comprehensive set of tools for decision model evaluation and testing, leveraging the DMN™ specification and Rust programming language to ensure high performance, reliability and portability.

DMNTK main features:

  • Evaluation of DMN models
  • Evaluation of decision tables
  • Evaluation of FEEL expressions
  • Parsing and validating DMN models
  • Parsing and recognizing decision tables
  • Parsing and validating FEEL expressions
  • Testing DMN models
  • Testing decision tables
  • Testing FEEL expressions
  • Exporting DMN models to HTML
  • Exporting decision tables to HTML
  • Exporting FEEL expressions to HTML



Licensed under either of

at your option.


We appreciate any contributions from the community to help improve our project. If you would like to get involved, please don't hesitate to reach out to us. All contributions intentionally submitted for inclusion in the work by you, shall be dual licensed as above, without any additional terms or conditions.


~1M SLoC