Authoring – Testing in the Editor

Test a DMN model locally with the DMN Runner before publishing. These guides require Authoring access and a running Extended Services instance.

The DMN Runner takes over the right side of the editor, split into two panels: Inputs on the left (one field per Input Data node) and Outputs on the right, evaluated live as you fill the inputs.

How to test a model with sample inputs

Run a DMN model locally against sample inputs and see live outputs.

Prerequisites: A .dmn/.dmns file open; Extended Services running (you are prompted to start it if not).

Steps:

1. In the toolbar, open the Run ▾ menu and choose As Form or As Table.

   

2. In the DMN Runner panel, enter values in the generated inputs.

Verify: The output section updates automatically with evaluated results — the Outputs cards show real values instead of (null) / "Evaluation skipped".

How to manage test input rows

Maintain multiple input scenarios for a model.

Prerequisites: DMN Runner open (see How to test a model with sample inputs).

Steps:

1. Click Add row to create a scenario.
2. Use the Row N dropdown to switch scenarios.
3. (Optional) Toggle Strict mode in the Run menu.

Verify: The selected row's inputs and outputs display in the panel.

How to save, load, or clear test inputs

Persist or reset your test data.

Prerequisites: DMN Runner open.

Steps:

1. Open the Run menu.
2. Choose Download inputs (saves a .json), Load inputs (pick a .json), or Delete inputs (then confirm).

Verify: Inputs are downloaded, loaded into the rows, or cleared, respectively.