[rules-users] Package parameters

Hi all, We are at the begining of a new clinical decision-support project. We are considering using a BRMS to manage and execute our business logic. As part of our research, we evaluated JRules and Drools. JRules has a nice feature that we could not find in Drools. We'd like to know if we are misunderstanding something, or maybe this feature is missing. In JRules, one can define a ruleset (corresponds to a package) with parameters. Each parameter has a datatype (a class), a direction (in/out/inout), and an alias. Then, within the rules, the user can refer to the parameter alias. For example, a user can define a ruleset with the following parameters: *class=LabResult, direction=in, alias=hemoglobin *class=LabResult, direction=in, alias=creatinin Then, within a rule, one can write: when hemoglobin.value<10 and creatinin.value>34 then... Now, the application retrieves the patient data accordingle (hemoglobin and creatinine data separetly) and sets the ruleset parameters: ruleset.parameters.add("hemoglobin",hemoglobinFact) ruleset.parameters.add("creatinin",creatininFact) This approach simplifies the rule authoring process significantly! Writing this logic in Drools will be: package cdss import LabResult; rule when LabResult(type=hemoglobin && value <10) LabResult(type=creatinin&& value <34) then... workingMemory.Assert(hemoglobinFact); workingMemory.Assert(creatininFact); Does someone has an idea how to bridge this gap using Drools? Im not sure if using parameters JRule complies with JSR94 specification. Thanks, Yoni -- View this message in context: http://www.nabble.com/Package-parameters-tp17979190p17979190.html Sent from the drools - user mailing list archive at Nabble.com.