About

A global identifier identify uniquely a primary element (entity or relationship) in the global scope

It's also generally known as:

• the fully qualified id
• the fully qualified name
• the canonical form (global unique id)

Example

• URI,
• National identification number
• Lexical Analysis - Identifier Token

Syntax

A fully qualified identifier is composed of:

• the unique entity attribute called the primary key where:
  • the numeric attribute is called an id
  • the textual attribute is called a name
• and its namespace

<MATH> \Large GlobalIdentity = NameSpace + PrimaryKey </MATH>

Identity

The identifier describes the identity of an entity.

If there is no namespace functionality in the system, you will get this formula <MATH> \Large id+entity = identity </MATH>