Drools expert docs
DeclarativeProgrammingLogicandDataSeparationSpeedandScalabilityCentralizationofKnowledgeToolIntegrationExplanationFacilityUnderstandableRules
DeclarativeProgrammingLogicandDataSeparationSpeedandScalabilityCentralizationofKnowledgeToolIntegrationExplanationFacilityUnderstandableRules