Hello all, I could not find a specific forum for Drools, so posting it here, please point me to it if there is one. I need an opinion from the Drools users/developers for a business problem. We have a requirement in which the end users would create mathematical "formulae" through a UI. So in a single transaction, a user could create a formula, apply it on the transactional data, and save the formula for future use. The operands in a formula would be attributes of certain objects, and the operators could potentially go beyond just simple algebraic operators. An example could look like this: | if (object.country == "USA") | then output = (object.normalRate * (@someConstant + #someUserInput)) / object.quantity | else output = (object.exciseRate * @someConstant) / object.quantity | The "decision-making" behavior of the formula inclines me towards using some rules engine like JBoss Rules/Drools. Does anyone here know if JBoss Rules or any other rules engine would fit for a requirement like this, where rules could be created dynamically through a UI and then saved (file or database) or users could select a rule among several available ones? I would really appreciate any feedback. Thanks, Yogesh View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4209604#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...