Question: What is the best way to customize the validation in the BRMS? Is there a callout method that exists in JBoss Rules already to override the current validator with a custom validator? Reason: I have a data driven object models and my users create rules in decision tables. I will have a decision table column header such as <Attribute> equals <value> and the user will enter a value in the cell for the 3 parameters DRIVER, age, 23 The java mapping for the condition column would be like: eval($1.isHashmapValueEqual("$2", "$3")) After parsing the decision table, the DRL would look like this DRIVER.isHashmapValueEqual("age", "23"); In this scenario, I do not have a DRIVER class until the rule is parsed and I create a proxy DRIVER class to use for rules execution. This proxy class generation is performed on the execution side on application startup and not on the management side. The management side never has a DRIVER to validate the rule against. ____________________________________________________ Barry Knapp Barry.Knapp(a)RailInc.com <mailto:Barry.Knapp@RailInc.com> 919.651.5039 MSN Messenger barry25(a)hotmail.com <mailto:barry25@hotmail.com>