Skip to main content

         This documentation site is for previous versions. Visit our new documentation site for current releases.      

This content has been archived and is no longer being updated.

Links may not function; however, this content may be relevant to outdated versions of the product.

Discrepancies in PMML model output on different systems

Updated on September 10, 2021

The same PMML model can produce different outputs when it is run on different systems.


This problem occurs when one of the following conditions applies:

  • Input values for the model are missing or invalid.
  • The PMML algorithms are programmed differently in the Pega Platform™ PMML engine and other third-party systems.

Solution - Missing or invalid input values for the model

For the solution, see Errors during the PMML execution.

Solution - PMML algorithms in the Pega Platform PMML engine

In some cases, third-party tools have deviated from the PMML standard, which might be the cause of discrepancies. The Pega Platform engine adheres to the PMML standard to execute the PMML definition. To make sure that there is no problem with the PMML engine on your instance of Pega Platform, ask a PMML developer and system architect to investigate the discrepancies that occurred.

  • Previous topic Definition of a class required by stream processing class is not found
  • Next topic Edits on the Form tab are not reflected on the Data tab

Related articles

Troubleshooting decision management components


Pega Platform 7.1.1 - 8.3.1 System Architect Lead System Architect Decision Management

Have a question? Get answers now.

Visit the Support Center to ask questions, engage in discussions, share ideas, and help others.

Did you find this content helpful?

Want to help us improve this content?

We'd prefer it if you saw us at our best. is not optimized for Internet Explorer. For the optimal experience, please use:

Close Deprecation Notice
Contact us