I'm looking for examples of effective tools for generating and maintaining complex rules generators. Outlook's rules generator is nice – but doesn’t allow complex rules branching. Axure rules generator doesn't seem very convenient. Any suggestions?
Are you looking for an expression builder/predicate editor? I have some examples in this post, #6 build an expression: http://designingwebinterfaces.com/15-common-components
The example from Wufoo allows for any or all of the conditions to be applied. What we found in testing in numerous different industries is that most non-programmer people don't understand and/or on each condition and making the whole condition and, or the whole condition or was sufficient.