Difference between revisions of "Metadata"
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| + | [[Metadata]] is [[data]] about other data. Since ''data'' is usually presented by a [[document]], ''metadata'' can be defined as a ''document'' that presents ''data'' about another ''document''. For instance, when one uploads a [[multimedia file]] up to a [[file-sharing system]], this ''system'' issues a [[system document]] that presents ''data'' from what [[user account]] the ''file'' is uploaded, its [[timestamp]] (when it is uploaded), what is its size, what is its title, category, and other tags that the uploading user and/or the ''system'' assigned to this ''file'', etc. | ||
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==See also== | ==See also== | ||
Revision as of 20:03, 12 October 2020
Metadata is data about other data. Since data is usually presented by a document, metadata can be defined as a document that presents data about another document. For instance, when one uploads a multimedia file up to a file-sharing system, this system issues a system document that presents data from what user account the file is uploaded, its timestamp (when it is uploaded), what is its size, what is its title, category, and other tags that the uploading user and/or the system assigned to this file, etc.
See also
Definitions
According to the BABOK Guide (3rd edition),
- Metadata. A description of data to help understand how to use that data, either in terms of the structure and specification of the data, or the description of a specific instance of an object.
According to the CyBOK (version 1),
- Metadata. Information about data or sent along with data, e.g., the IP address, the location, or the operative system a message is sent from.
