Opinions on Metadata

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Metadata is "data about data". There are two types of metadata (or two types of "metadata types ") : structural metadata and descriptive metadata. Structural metadata is data about the containers of data. Descriptive metadata uses individual instances of application data or the data content.

Metadata was traditionally in the card catalogs of libraries. As information has become increasingly digital, metadata is also used to describe digital data using metadata standards specific to a particular discipline. By describing the contents and context of data files, the usefulness of the original data/files is greatly increased. For example, a web page may include metadata specifying what language it is written in, what tools were used to create it, and where to go for more on the subject, allowing browsers to automatically improve the experience of users. Wikipedia encourages the use of metadata by asking editors to add category names to articles, and to include information with citations such as title, source and access date.

The main purpose of metadata is to facilitate in the discovery of relevant information, more often classified as resource discovery. Metadata also helps organize electronic resources, provide digital identification, and helps support archiving and preservation of the resource. Metadata assists in resource discovery by "allowing resources to be found by relevant criteria, identifying resources, bringing similar resources together, distinguishing dissimilar resources, and giving location information."

In the image below, you can see a graph with the evolution of the times that people look for Metadata. And below it, you can see how many pieces of news have been created about Metadata in the last years.
Thanks to this graph, we can see the interest Metadata has and the evolution of its popularity.

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