Unique Item Identifier (UII)

The unique item identifier (UII) is defined in two separate contexts:
Editor note; except when noted these definition are direcly off a government or department of defense specification.
1. DoD UII Data Set. A UII is a set of data elements marked on an item in a Data Matrix EC200 symbol that is globally unique and unambiguous. For items that are serialized within the enterprise identifier, the UII data set includes the data elements of enterprise identifier and a unique serial number. For items that are serialized within the part, lot or batch number within the enterprise identifier, the UII data set includes the data elements of enterprise identifier, the original part, lot or batch number, and the serial number. In addition to the two constructs comprising multiple data elements, the UII data set may be a fully concatenated UII in a single data element, such as would be defined by the use of data qualifiers 25S or UID, or a DoD recognized IUID equivalent, such as would be defined by the use of data qualifiers I, 22S, 8002, 8003, or 8004.

2. The generic term, UII, has evolved through usage to mean the concatenated UII as a common data base key without regard to the data set construct being used. In this context, the term UII may be used to designate concatenated UII Constructs #1 and #2, or the DoD recognized IUID equivalents of Global Individual Asset Identifier (GIAI), Global Returnable Asset Identifier (GRAI) when assets are serialized, Vehicle Identification Number (VIN), or Electronic Serial Number ((ESN), for cell phones only). Editor note; the Electronic Serial Number system seems to be out-dated [all available numbers used]. The new system is the Mobile Equipment Identifier (MEID).

Department of Defense (DoD) Instruction 5000.64,
Defense Property Accountability
, requires that accountability records be established for all property (property, plant and equipment) with a unit acquisition cost of $5,000 or more, and items that are sensitive or classified, or items furnished to third parties, regardless of acquisition cost. Property records and/or systems are to provide a complete trail of all transactions, suitable for audit.

DOD Definitions:
Custodian: The enterprise [editor; company or responsible person] that has stewardship accountability of an item, i.e., responsibility for the control of, transfer and movement of, and access to, equipment and material. Custody also includes the maintenance of accountability for equipment and material.
DoD item unique identification: A system of marking items delivered to the Department of Defense with unique item identifiers that have machine-readable data elements to distinguish an item from all other like and unlike items. Items are marked with a Data Matrix, the contents of which are encoded in the syntax of ISO/IEC 15434
Item: A single hardware article or unit formed by a grouping of sub-assemblies, components, or constituent parts. Editor note; this might also be considered a Line Item in a parts list.
Item identification: Sufficient data to establish the essential characteristics of an item that give the item its unique character and differentiate it from other supply items.

Unique Identification (UID) Defense Procurement and Acquisition Policy [www.acq.osd.mil]

General Engineering Abbreviations
General Engineering Definitions.

PC motherboard

Distributor rolodex Electronic Components Electronic Equipment EDA CDROM Software Engineering Standards, BOB card Cabled Computer Bus Electronic Engineering Design Table Conversion DB9-to-DB25.
DistributorsComponents Equipment Software Standards Buses Design Reference

Modified 12/19/11
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