Very Slow DMN Validation

[Abhijit Kedia]

for my simple DMN on kogito . It is taking a lot of time to validate the DMN. It takes upto 15 minutes to do the same.  what require help in knowing why it is happening that way.

[Matteo Mortari]

Hi Abhijit,

the Decision Table Analysis is configured by default to attempt Overlap analysis even when you are using string values which should have been enumerated for your columns. In your case, it seems to me you have not enumerated types for Dealer.IsPolicyIssuingDealerCode, Vehicle.RTOCode, Vehicle.ModelCode, Vehicle.VehicleType.

Looking at the table, it looks to me that decision table is also failing methodology-wise, especially for columns Dealer.IsPolicyIssuingDealerCode and Vehicle.ModelCode.

In my view, you have 2 options.

Option1.

If you want to follow methodology best practices, likely values in Dealer.IsPolicyIssuingDealerCode ought to be represented in a subdecision, something ~like "is special dealer code", so that would transform into a boolean check in your current table.

Then, Vehicle.ModelCode can also be refactored in another subdecision, for "PCP" classfication and segmentation in their own categories, looks to me you have 3 of them; so that would transform into 3 different category values in your current table.

You can find example of categorization in this webinar, video recording is also available: https://blog.kie.org/2021/08/how-to-capture-business-decisions-using-dmn-introduction-to-some-basic-patterns-and-their-value.html#:~:text=PATTERN%3A%20CLASSIFICATION 

Option2.

If you want to keep the decision table as-is, despite lacking DMN methodology best-practices, you can always disable validation.

Ref.: https://docs.kogito.kie.org/latest/html_single/#con-dmn-validation_kogito-dmn-models:~:text=Configuration%20to%20disable,decisions.validation%3DDISABLED

Hope this helps!

MM

On Sun, 7 May 2023 at 21:03, Abhijit Kedia <abh...@kedia.org> wrote:

for my simple DMN on kogito . It is taking a lot of time to validate the DMN. It takes upto 15 minutes to do the same.  what require help in knowing why it is happening that way.

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[Abhijit Kedia]

Thanks ,

It really helped 

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