How to refactor rules when fact model changes?

Issue

Our core application is being changed and one part includes changing the domain model classes and some of its attributes. These classes are being used in rules - how to properly refactor the rules so they are compatible with the new changes?

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Here are the common uses of Markdown.

Code blocks

~~~
Code surrounded in tildes is easier to read
~~~

Links/URLs

[Red Hat Customer Portal](https://access.redhat.com)