Metadata is data that describes other data, and is mainly used for electronically-portrayed information. Metadata helps collect the who, what, where, when, why and how of data and presents it all in a short summary. The summarized information can help display the basics about the data, which can make finding and identifying it easier.
Metadata can be used for a number of different kinds of data files, such as images, videos, text documents and web pages. The metadata descriptions of each file can provide information such as the file’s size, when it was created, what language it is in, and what programs were used to create or modify it, as well as a short description of the file’s contents
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