Logical Data Modeling - Name

Data System Architecture


name is an label attribute of an primary element / identifier that specifies a unique key in a specific scope called a namespace.


  • the name of file is unique in a directory.
  • the name of a variable is unique in its local scope (ie function, block).
  • an url is unique on the internet.

Fixed-length identifier

If your name is too long, you can create fixed length unique identifier with the version 3 and 5 of UUID


The URN (uniform resource name) is a format name specification but the name does not need to follow any specification as long as it's unique in its namespace.

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