Metadata is data which describes other data, usually to provide additional information about the content of the original data. Digital cameras, for example, routinely include a wide range of metadata with each photograph they take. The photograph itself is the primary data, the metadata is data attached to that photograph such as the date of capture, the settings the camera used (EXIF data that includes such information as the shutter speed or aperture settings), and the file size.
Other common examples of metadata include music tags embedded in digital music files, author and company information embedded in word processor documents, and content meta tags embedded in web pages.
- By Jason Fitzpatrick on 03/4/13