Logical Data Modeling - (Metadata|Descriptor)

1 - About

Metadata are data about data. They are data that describes other data.

Metadata is also known as:

  • Descriptor.
  • Ancillary data

Metadata is information stored in the data dictionary about components of the data model.

In the SQL specification, they write that the descriptor of an object represents everything that needs to be known about the object.

By adding metadata to your resource, you create a graph object

3 - Example

The prototypical example of metadata is the library catalog, which is a description of the contents of books.

4 - Protocol

5 - Format

This format are used in the distribution of data set

6 - Logical

7 - Documentation / Reference


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