Hey all, I see a couple of posts in the mailing list/forum around the date-effective and date-expired. Forgive my ignorance, I'm still learning as I go, but I have this example and I'm wondering if that is where I should look, or if that is the wrong path: Given the mortgage example, lets say you have LoanApplications come in with an 'Application Date'. There may be one rule that has 3 different versions (all versions 'active') depending on the date of the application, and the application may come in later, and/or a rule may be a retroactive rule (I just made a new rule, but it came into effect two days ago (say during a weekend and is only for those two days), so any ApplicationDate based loan applications that show up on Monday with dates from the past two days should use that retroactive rule instead of, potentially, a new 'current' rule). This is not the same as history (what *was* the rule(s) as of prior Friday), which is also important, which is why I'm asking if someone has tackled this area that will help someone new understand the best approach for date-based rules while understanding/retaining history. thanks! -Darren -- View this message in context: http://drools.46999.n3.nabble.com/Rule-s-based-on-different-fact-dates-da... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users