===== Metadata =====

=== Definition ===
Metadata is data that defines and describes the [[general_term/characteristic|characteristics]] of other [[data_concept/data|data]]. (DAMA Dictionary)

===DMBoK2===
Metadata is about having Information about data. Metadata describes and defines data and is a tool for understanding data.

=== Relations ===
|Metadata|is child of |[[data_concept:data|data]]|
|Metadata|is child of |[[data_concept:data_category|data category]]|
|Metadata|is parent of|[[data_concept/defining_metadata|defining metadata]]|
|Metadata|is parent of|[[data_concept:operational_metadata|operational metadata]]|
|Metadata|is parent of|[[data_quality_management_system:data_lineage|data lineage]]|
|Metadata|is parent of|[[data_quality_management_system:data_quality_rule|data quality rules]] |
|Metadata|is parent of|[[data_concept/data_dictionary|data dictionary]]|
|Metadata|is parent of|[[data_concept/data_element_specification|data element specification]]|
|Metadata|is parent of|[[data_concept/data_model|data model]]|
|Metadata|is parent of|[[data_concept/format|format]]|
|Metadata|is parent of|[[data_concept/unit|unit]]|
|Metadata| is an element of a |[[data_quality_general/data_quality_management_system|data quality management system]]| 

{{ :data_management:data_quality:metadata_types_07.png?400 |}}
//Figure 1 Childs of metadata//


|Metadata|is parent of|[[data_quality_management_system:critical_data_element|critical data element]]|
|Metadata|is parent of|[[data_concept:business_glossary|business glossary]]|
|Metadata|is parent of|[[data_concept:data_model|data model]]|
|Metadata|is parent of|[[data_concept:data_element_specification|data element specification]]|

===Lifecycle===
  * Define metadata
  * Describe metadata
  * Implement metadata
  * Use metadata
  * Evaluate metadata
  * Change metadata
  * Store metadata
  * Maintain metadata
  * Publish metadata

=== References ===
  * Alexopoulos, P. (2020). //Semantic modeling for data: Avoiding pitfalls and breaking dilemmas.// O'Reilly Media.
  * DAMA (2017). DAMA-DMBOK. //Data Management Body of Knowledge.// 2nd Edition. Technics Publications LLC. August 2017.
  * DAMA NL (2020). [[https://www.dama-nl.org/wp-content/uploads/2020/09/DCS-Data-Concept-System-DDQ-Research-Paper-version-1.2-d.d.-3-Sept-2020.pdf|Data concepts for Data Quality Dimensions (DSC)]]. Research paper.
  * DAMA-NL. [[https://dama-nl.org/werkgroepen/werkgroep-metadata/|Werkgroep Metadata (Dutch)]]. Webpage.
  * Earley, S. (2011). The DAMA Dictionary of Data Management (DDDM). Technics Publications, LLC, New Jersey.
  * Dingemans, Bert (2022). [[http://wpp.interactory.nl/upload/metadatarepository.pdf|Een repository voor Meta Data Management (Dutch)]]. Report.
  * ISO 11179:1999 //Information technology — Specification and standardization of data elements//
  * ISO 9000:2015. //Quality Management Systems – Requirements.// 
  * ISO 9001:2015. //Quality Management Systems – Fundamentals and vocabulary.//
  * Harris, J. & Hoberman, S. (2020). //Data modeling made simple with Erwin DM.// Technics Publications LLC, New Jersey.

{{tag>All DQMS DUMS DMBoK2}}