Developing Business Rules About Business Rules Rules as Classes Getting Started Using the Old Zen Rule Editor About Rule Definitions About Rule Sets Working with Rules About If and Else Clauses About Actions Defining Expressions Defining Constraints Disabling a Rule Passing Data to a Data Transformation Adding Business Rule Notification Debugging Routing Rules Testing Routing Rules Strategies for Debugging Routing Rules Utility Functions for Use in Productions Built-in Functions Syntax to Invoke a Function