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| | [https://github.com/openego/data_processing/blob/21ecc8eb7703c33d319eea4742e61a96328bbd23/data_documentation/documentaion_on_table_example.sql The SQL example is on GitHub.] | | [https://github.com/openego/data_processing/blob/21ecc8eb7703c33d319eea4742e61a96328bbd23/data_documentation/documentaion_on_table_example.sql The SQL example is on GitHub.] |
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| | + | Different concepts for metadata were compared, harmonized and simplyfied: |
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| | + | *[[:File:http://frictionlessdata.io/guides/data-package/#getting-started|OKFN (Frictionless / Data Package)]] |
| | + | *[[:File:https://github.com/fraunhoferfokus/ogd-metadata/blob/master/OGPD_JSON_Schema.html|CKAN (Frauenhofer)]] |
| | + | *[[:File:http://data.open-power-system-data.org/renewable_power_plants/2016-10-21/datapackage.json|OPSD]] |
| | + | *INSPIRE |
Revision as of 15:46, 22 November 2016
Definition
1. Metadata is data (information) that provides information about other data.
2. Three distinct types of metadata exist: structural metadata, descriptive metadata, and administrative metadata.
3. Metadata means "data about data". Although the "meta" prefix (from the Greek preposition and prefix μετά-) means "after" or "beyond", it is used to mean "about" in epistemology. Metadata is defined as the data providing information about one or more aspects of the data; it is used to summarize basic information about data which can make tracking and working with specific data easier. Some examples include: Means of creation of the data, Purpose of the data, Time and date of creation, Creator or author of the data, Location on a computer network where the data was created, Standards used, File size
Abbreviation
Synonyms
Superterms
Subterms
Sources
http://www.merriam-webster.com/dictionary/metadata, http://marciazeng.slis.kent.edu/metadatabasics/types.htm, https://en.wikipedia.org/wiki/Metadata#Definition
Metadata in oedb
In the oedb, the metadata is stored in a comment as a JSON string.
The SQL example is on GitHub.
Different concepts for metadata were compared, harmonized and simplyfied:
