METADATA….

9 Mar

 

Hey Guys🙂 So today is the last of my posts!! Hope you have enjoyed reading them over the past few weeks and have learned some valuable information which will be useful for the exam in may🙂 Today I will discuss METADATA for my final blog.

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Information systems are increasing in complexity. There are greater volumes of data, users, processes and transactions. There are greater interdependencies between components. The range of available storage, user interface and computing devices is increasing. The key to homogeneous access to heterogeneous resources lies with metadata. The future of advanced information systems depends on metadata.

Metadata is essential for understanding the structure of information, its quality and its relevance. It is essential in explaining answers from ever more complex information systems. Metadata has been used in information systems engineering for many years – but usually in a specialist, one-off and uncoordinated way.

Metadata describes other data. It provides information about a certain item’s content. For example, an image may include metadata that describes how large the picture is, the color depth, the image resolution, when the image was created, and other data. A text document’s metadata may contain information about how long the document is, who the author is, when the document was written, and a short summary of the document.

Why Use Metadata?

So information can be:

  • Findable
  • Trustworthy
  • Understandable

How is metadata used? 

  • Different metadata for different purposes
  • Metadata may be covered by one or more standards
  • Different applications of metadata include
  •  Data management
  •  Resource discovery
  • Geospatial description
  •  Recordkeeping

Challenges 

  • Often not understood
  •  Quality
  • Manual v automatic
  • Interoperability
  • Re-use
  • Digital environment / full text search

Here is a video which helps explain metadata in a very simple way:  

Thank you for reading my blogs over the past few weeks, hope you enjoyed them and hope they help with study🙂

2 Responses to “METADATA….”

  1. sad111708665 March 9, 2013 at 6:07 pm #

    …very nice blog and video; thanks for that🙂

  2. sad112540853 March 9, 2013 at 6:13 pm #

    The video was very helpful in explaining metadata😀 Great blog😀

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