unique identifier - meaning and definition. What is unique identifier
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What (who) is unique identifier - definition


Unique identifier         
IDENTIFIER WHICH IS UNIQUE AND PERMANENT WITHIN A SUBSET OF SPACE AND TIME
Unique Identification Number; Unique identifiers; Unique Identifier(UID); Unique Object Identifier; Unique identifying code
A unique identifier (UID) is an identifier that is guaranteed to be unique among all identifiers used for those objects and for a specific purpose. The concept was formalized early in the development of Computer science and Information systems.
Organizationally unique identifier         
24-BIT NUMBER IN NETWORKING EQUIPMENT THAT UNIQUELY IDENTIFIES ITS SELLER/PRODUCER
Organisationally Unique Identifier; Organisational Unique Identifier; Individual Address Block; Organizationally Unique Identifier
An organizationally unique identifier (OUI) is a 24-bit number that uniquely identifies a vendor, manufacturer, or other organization.
Guid         
128-BIT NUMBER USED TO IDENTIFY INFORMATION IN COMPUTER SYSTEMS
GUID; Globally unique identifier; UUID; Clsid; Guid; CLSID; Uuid; REFIID; UUIDs; Globally Unique Identifier; Universally Unique Identifier; Libuuid; CUID; Cuid; Universal unique identifier; Globally unique universal identifier; Globally unique; Universally unique
·noun A flower. ·see Gold.
Examples of use of unique identifier
1. Cookies often have a unique identifier that can link your searches from one session to the next.
2. Jeffreys discovered in 1'84 that the DNA of an individual differs from that of another, making it a unique identifier.
3. A CRN is a unique number generated and assigned to a person, which will be his unique identifier for life.
4. Giving evidence this morning to the select committee, Mr Reid explained that at this point in time there was no "unique identifier" for prisoners, which often led to duplication.