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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:


  • 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
  • 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
  • Homepage of Metadata++
    Welcome to Metadata++, your free metadata manager for Windows! Metadata++ is designed to help you efficiently manage and organize your digital files by handling metadata
  • What is Metadata? A Guide to Understanding Data About Data
    Metadata is often described as “data about data,” providing information about a data item, file, or collection that helps us understand, find, and use it effectively
  • 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
  • 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: Definition, Types, Uses | Salesforce
    Metadata is structured data that describes, explains, or provides context for other data Metadata is data about your data, which can help you efficiently search for information in a database or data platform
  • What is Metadata (with examples) - Data terminology
    Relational databases (most common type of database) store and provide access not only data but also metadata in a structure called data dictionary or system catalog





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