Have talked to a few people about this, so I thought it was worth a write up in the wiki: http://wiki.jboss.org/wiki/Wiki.jsp?page=RulesGrandfather
Basically am fishing for ideas of building in grandfather capability into rules declaratively. (ie 2 different versions of the same rule available, used depending on the data). This is related to but seperate from repository based effective dating. Please reply with any thoughts (or put notes on the wiki). Michael.
