Decision Model and Notation Toolkit

Overview

DMNTK is a set of tools for building, testing and evaluating decision models.

DMNTK is based on the Decision Model and Notation (DMN™), the industry standard led by the Object Management Group (OMG®), the institution behind such standards like UML®, BPMN™ and CORBA®.

DMNTK is written in Rust, a programming language that empowers building reliable and efficient software.

DMNTK aims to be fully compliant with DMN™ specification.

Installation

Install DMNTK using cargo:

$ cargo install dmntk

Check available commands:

$ dmntk --help

Overview

DMNTK may be used to:

• parse FEEL expressions,
• parse DMN models,
• parse decision tables,
• evaluate FEEL expressions,
• evaluate DMN models,
• evaluate decision tables,
• test FEEL expressions,
• test DMN models,
• test decision tables,

and last but not least:

• to evaluate DMN models as a service.

Examples

DMNTK provides examples ready to play with.

To install the examples run:

$ dmntk exs

Evaluate FEEL expression

$ cd ./examples/e1
$ dmntk efe e1.ctx e1.feel
3

Evaluate DMN model

$ cd ./examples/e2
$ dmntk edm e2.ctx e2.dmn
"Hello John Doe"

Evaluate decision table

$ cd ./examples/e3
$ dmntk edt e3.ctx e3.dtb
0.15

Run as a service

$ cd ./examples/e2
$ dmntk srv -D .
Loaded 1 file(s) from directory: .
dmntk 0.0.0.0:22022

Switch to another terminal window and run:

$ curl -s -d '{"Full Name":"John Doe"}' -H "Content-Type: application/json" -X POST http://0.0.0.0:22022/evaluate/compliance-level-2-test-0001/Greeting%20Message
{"data":"Hello John Doe"}

License

Licensed under either of

• MIT license (LICENSE-MIT)
• Apache License, Version 2.0 (LICENSE-APACHE)

at your option.

Contribution

All contributions intentionally submitted for inclusion in the work by you, shall be dual licensed as above, without any additional terms or conditions.