The CommandEnumeration provides standardized commands that can be sent to a state machine. The ControlModeEnumeration contains the PackML modes of operation of a machine. The MaterialIntegrityAgentEnumeration identifies the possible agents responsible for material integrity checking. The MaterialStockStatusEnumeration provides the stock status for a material lot. The MaterialValidationStatusEnumeration describes the status of the material validation process. The MotorDirectionEnumeration provides the rotation direction of a motor. The ParameterDependencyEnumeration contains what a parameter is depending upon. The ProductionStatusEnumeration contains the production state of a machine module. The StateEnumeration contains the PackML states for a machine. The StorageLogicEnumeration describes standard loading and unloading material configurations. The StorageMixingLogicEnumeration describes standard ways of mixing material in a material storage buffer. The DataDescriptionType structure contains a metadata, i.e. a description. The DataDefinitionType structure contains the metadata that describes a parameter. The DataValueType structure contains a data value. The DataSetDefinition structure contains the description and other necessary metadata of the complete set of machine settings required for production. The DataSetEntryType structure contains the value of a single parameter, or data value. The DataSetType structure contains a set of data values. The MaterialDefinitionType structure contains the definition of a material. It is harmonised with ISA 95 Material Definition. The MaterialListItemType structure contains a single material to be processed. The MaterialListType structure contains a set of material list items. The MaterialLotType structure contains the material lot information. It is harmonised with ISA 95 Material Lot. The MaterialPointType structure provides the description of the capability of a load or unload point. The MaterialStorageBufferDataType structure provides the description of the capability of a material storage buffer. The MaterialSublotType structure contains the material sublot information. It is harmonised with ISA 95 Material Sublot. The MessageType provides a uniquely identified localised text. The RootCauseMessageType structure contains a root cause message and its group identifier. The MethodExecutionFeedbackType provides suitable feedback, both positive and negative, to an OPC UA client invoking a method. The ProductionOrderHeaderType structure contains the header information for a production order. The ProductionOrderType structure contains the complete production order information. The OrchestrationProductionOrderType structure contains the complete production order information used by the Production Order Orchestration Layer. The RootCauseGroupType structure contains a root cause message and its group identifier.