SAPInterfacesInterfacesofR3VariosinterfacesPutdatainR3OpencomunicationPlanningAnalysisALEALEObjectivesALEFeaturesALEFeatureslHelpsAchieveaVirtualViewofaMulti-ClientCorporation/EnterpriselRequiresaCompletedDetailedEnterpriseDesignlProvidesDistributionReferenceModelslPC-ToolhelpstocreateEnterpriseModellProvidesforInputandOutputProcessinglProvidesforCommunicationControlMechanismMessagingTechniqueusesStrucxtureofanIDOCFlowofInformationOutputprocessingICommunicationInputProcessingCommunicationparametersCommunicationwithNONSAPSystemsEDIInterfaceOverviewEDISubsystemresponsabilitiesIdocConcept,GeneralTheClassicApproachTheSAPR3ApproachRFC