Add plm:refType attribute to various attributes PLM XML In-Service (MRO) schema. This represents a physical product, throughout its as-built/as-maintained lifecycle. Attributes: manufacturerId Id (part number) assigned by Manufacturer. mrbId Id (part number) assigned by Material Review Board manufactureDate Date (and time) of manufacture manufacturerRef Ref to manufacturing Organisation designRef Reference to Product Revision from which this product was realised. standardLife StandardLife specified in given environment and operation conditions. actualLife Actual Hours recorded by physical part. standardLifeValueRef Reference to a ValueWithUnit giving the standard life actualLifeValueRef Reference to a ValueWithUnit giving the actual life lifeLimitedPart Whether the life of a part is limited. orderDate Physical Part Order Date. serialNumber Serial Number if a serialised product lot Lot number if product is lot. traceablePartType Whether the part is repairable or non-repairable. orderId Physical Part order id. This represents a physical product, at a particular stage of maintainance. It corresponds to STEP AP239 'product_as_realized'. Facility classes are defined to identify usage of physical parts in various facilities like Inventory, Repair Shop etc. Inventory class is defined to identify usage of physical parts in an Inventory. RepairShop class is defined to identify usage of physical parts in a Repair Shop.