This repo contains the sources for a DMN activity for the RPA tool UiPath. For creating and evaluating the DMN decisions, an instance of Camundas open-source engine is required.
- Go to the releases section, and download the
*.nupkgfile from the assets. - Copy the package to the UiPath directory for local packages.
- In your UiPath project, install the package. (All packages → local, you can also search for
DMN) - Now, the new DMN activity should be available for use as any other UiPath activity. You can find it by the name
External Decision Service.
After adding a DMN acivity to your workflow, the following elements need to be configured in the Properties-Panel:
Inputs:
- Input Variables: the list of variables in UiPath that should be passed to the decision service
- Input Variables Names: the list of input names of the decision table in the same logical order as the input variables.
Options:
- Decision Key: The identifier of the decision to evaluate. This ID can be found in the Camunda engine after deploying the decision table.
- Service Host: The URL under which the Camunda engine is reachable.
Output:
- Decision Result: The name of the UiPath variable, the decision result(s) should be stored in.
Example: The decision table requires the inputs Type of Shipment and Destination. In the RPA bot, those values are stored in the variables shipmentType and destination. To provide the correct mapping of UiPath variables and inputs of the decision table the following must be configured:
Input Variables =
{shipmentType, destination}Input Variables Names =
{"Type of Shipment", "destination"}By this, the DMN activity knows how to map the variables to the decision table inputs.
The decision key looks something like
"Decision_1hyvppg"and the service host, if the engine is deployed locally, might be"http://localhost:8080".
ℹ️ Please bear in mind that this activity is currently in the prototype stage.