Specify DMN rules for Decision table at runtime

BPMN & Modeling Discussion & Questions
1

Is it possible to specify DMN rules (for a decision table) at runtime (when executing the rule).

E.g.
Input columns - Season
Output columns - Temperature

Rule rows: (inject into the DMN table at runtime instead of specifying statically when creating the rule table)

  1. Winter - Cold
  2. Summer - Hot
2

@MichaelS, in that case better approach is create the decision table also at runtime.

3

@aravindhrs
Thanks for your response.

I have thought about it and I am going to create a base template of the decision table.
At runtime I am going to retrieve this template (contains only in/out), add the rule rows and save it as a new instance.
This new DMN instance will then be used for the specific entity assigned to it in future instead of the base template.

Thanks for your input.

4

Hi Michael,

Hope you are doing well. I am also in need of solving a similar usecase in my project. Could you please share with us your experience on how you have implemented your solution in the end?Do you have the solution in Git where I can take a look please?

Thanks very much,
Roshini

5

I have managed to solve this problem. I have put together a spring boot app that has can dynamically generate and deploy the DMN decision table. The source code is given below. Hope this will help the others looking for a similar solution.

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