Metadata Layer#


Metadata in short could be described as the description of the data which organization has. It contains:

  • Information about data

    • Description of the content different sorts of data

  • Metadata

    • Description of relations on data

    • Schema

    • Capabilities on access to data

With metadata you can:

  • Search resources by all kinds of criteria;

  • Identify various resources;

  • Collect resources by topic;

  • Trace resources.

../../_images/metadataformats.png

Descriptive metadata is dedicated to the textual description of the data, which datasets are available, what are the limitations for data usage, contact point within the organization for data, etc.

Structural metadata includes the ontologies, vocabularies on data, its structure, and sometimes also actual schema for available for sharing data.

Administrative metadata contains the information on how to access data in controlled manner, the information about provenance of data (data sources), it could contain some statistics on data, and instruction for making a communication channel for automated request for data.