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metadata    
元數據

元數據

metadata
解釋用資料;元數據

metadata
n 1: data about data; "a library catalog is metadata because it
describes publications"

/me't*-day`t*/, or combinations of /may'-/ or
(Commonwealth) /mee'-/; /-dah`t*/ (Or "meta-data") Data about
{data}. In {data processing}, metadata is definitional data
that provides information about or documentation of other data
managed within an application or environment.

For example, metadata would document data about {data
elements} or {attributes}, (name, size, data type, etc) and
data about {records} or {data structures} (length, fields,
columns, etc) and data about data (where it is located, how it
is associated, ownership, etc.). Metadata may include
descriptive information about the context, quality and
condition, or characteristics of the data.

A collection of metadata, e.g. in a {database}, is called a
{data dictionary}.

Myers of {The Metadata Company} claims to have coined the term
in 1969 though it appears in the book, "Extension of
programming language concepts" published in 1968, by {Philip
R. Bagley}. Bagley was a pioneer of computer document
retrieval. "A survey of extensible programming languages" by
Solntsseff and Yezerski (Annual Review in Automatic
Programming, 1974, pp267-307) cites "the notion of 'metadata'
introduced by Bagley".

(2010-05-15)

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英文字典中文字典相關資料:
  • Metadata - Wikipedia
    Metadata (or metainformation) is " data that provides information about other data", [1] but not the content of the data itself, such as the text of a message or the image itself [2] There are many distinct types of metadata, including: Descriptive metadata – the descriptive information about a resource
  • What is metadata and how does it work? - TechTarget
    Metadata is data that describes other data, providing a structured reference that helps to sort and identify attributes of the information it describes
  • What is Metadata (with examples) - Data terminology
    Here are a few real world examples of metadata: Typical metadata Those are some typical metadata elements: Title and description, Tags and categories, Who created and when, Who last modified and when, Who can access or update A photo Every time you take a photo with today's cameras a bunch of metadata is gathered and saved with it: date and
  • What is Metadata? A Guide to Understanding Data About Data
    Learn what metadata is and how it enhances data organization, discovery, and quality across applications, from digital files to websites and social media
  • What Is Metadata? Examples, Benefits Use Cases (2025) - Atlan
    What is Metadata? Metadata is defined as the information that describes and explains data It provides context with details such as the source, type, owner, and relationships to other data sets So, it can help you understand the relevance of a particular data set and guide you on how to use it
  • Metadata | Definition, Examples, Standards | Britannica
    Metadata allows for the easy retrieval, management, and use of data It can be collected for any type of data, from the content of ancient scrolls to that of modern websites, and it can relate to any informational aspect of data, such as its origin, location, format, or quality
  • Metadata Basics - Metadata Guide - CMU LibGuides at Carnegie Mellon . . .
    Metadata facilitates organization, indexing, discovery, access, analysis, and use of print and online resources Metadata enables software agents to navigate and "comprehend" web content Metadata influences search engine results, rankings, and click-through rates
  • What Is Metadata? Definition, Types, and Importance
    Metadata is structured information that describes, explains, and gives context to data, often referred to as data descriptors, making it easier to locate, use, and manage





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