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metadata    
元数据

元数据

metadata
解释用资料;元数据

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关资料:


  • Metadata - Wikipedia
    According to Ralph Kimball, metadata can be divided into three categories: technical metadata (or internal metadata), business metadata (or external metadata), and process metadata
  • What is Metadata? - GeeksforGeeks
    Metadata refers to data that provides information about other data It describes the structure, content and characteristics of a file, document, image or dataset, helping users and systems understand and manage data more effectively
  • Online EXIF Metadata Viewer for Images, PDFs, Videos
    View metadata in images, PDFs, Office documents, and videos online Inspect EXIF, GPS, timestamps, and file data with a fast, free metadata viewer
  • 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 and Why Do We Need It? - lisedunetwork. com
    Metadata is commonly defined as “data about data,” but in practice, it is much more than a simple definition It refers to the structured information that describes, explains, or gives context to a resource, making it easier to identify, locate, manage, and use
  • Check files for metadata
    What Is Metadata? Metadata is basically information about other data Many files contain extra or hidden data besides the visual content you see at first glance E-books, photographs, movies, music, and documents can all contain data that you do not see immediately
  • What Is Metadata? | Metadata2Go
    Discover what metadata is, its types, and why it is crucial for organizing and protecting your digital files Learn how metadata improves data management and privacy
  • Homepage of Metadata++
    Metadata++ is designed to help you efficiently view, edit, modify, and search metadata in your digital files Whether you work with photos, documents, videos, or other types of files, Metadata++ helps you inspect and manage metadata with ease
  • What is Metadata (with examples) - Data terminology
    Metadata is simply data about data It means it is a description and context of the data It helps to organize, find and understand data Here are a few real world examples of metadata: Those are some typical metadata elements: Who can access or update





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