DMN - How to INCLUDE MULTIPLE OUTPUT VARIABLES IN OUTPUT COLUMN

BPMN & Modeling Discussion & Questions
1

Hello,
I’m implementing DMN in modeler.

(1)It has INPUT PAYLOAD as attached in image (DMN_REQUEST.png).
(2)Diagram is attached in image (DMN_DIAGRAM.png)
(3)Source code file as attached (scoringJames.dmn)

There are 4 output variables and want to send all 4 variables as output variables.
(1)marksScore (2)examPatternScore (3)ageScore (4)total

NOTE:
“(4)total” is calculated by this formula ==> (marksScore0.2)+(examPatternScore0.3)+(ageScore0.2)

Kindly let me know where i’m going wrong or what is to be done
Thanks in advance

DMN_DIAGRAM
DMN_DIAGRAM1352×721 33.1 KB
DMN_REQUEST scoringJames.dmn (7.2 KB)

2

Hi @james1980,

thanks for sharing.

I see that you changed the expression language everywhere to javascript.

This could be the problem. I think that the expression "A" in the “Exam Pattern” input can not be evaluated to true because it doesn’t compare the value with the input.

Does this help you?

Best regards,
Philipp

4

@Philipp_Ossler
Thanks,Above is working,But facing issue on calculating “total”

There are 4 output variables and want to send all 4 variables as output variables.
(1)marksScore (2)examPatternScore (3)ageScore (4)total

NOTE:
“(4)total” is calculated by this formula ==> (marksScore 0.2)+(examPatternScore 0.3)+(ageScore 0.2)

Kindly see attached images and let me know what is wrong

marksScore_commandPrompt
marksScore_commandPrompt989×512 36.2 KB
totalScoreCALCULATION
totalScoreCALCULATION1333×396 19 KB

5

@Niall @DanielMeyer @Philipp_Ossler @aravindhrs

6

The expression can not be evaluate because the variables doesn’t exist. It is not possible to reference a variable from a different output.

You should think about your decision table again. I see the following problems:

  • ageScore is declared as a string
  • totalScore is declared as a string
  • totalScope is an aggregate of the other 3 outputs
    • it can not be calculated in this table itself
    • maybe not all outputs have a value

An option is to calculate totalScope outside of the decision table after it is evaluated.

1 Like
7

In my opinion the best sokutiin would be a requirements graph. The output variables habe to be double or integer. Thab you define a dependent table and in the output of this table you can repeat the output columns and provide a Fürther output column with the calculation.

Kind regards
David

8

@davidibl above is working after changing datatype suggested by @Philipp_Ossler .
3 output variables are passed on to script task and “totalscore” is calculated there…
Thanks guys…