In these fields the word metadata is defined as "data about data". Since then the fields of information management, information science, information technology, librarianship, and GIS have widely adopted the term. "data about the containers of data" rather than the alternate sense "content about individual instances of data content" or metacontent, the type of data usually found in library catalogues. The term "metadata" was coined in 1968 by Philip Bagley, in his book "Extension of programming language concepts" where it is clear that he uses the term in the ISO 11179 "traditional" sense, which is "structural metadata" i.e. But if given the context that this database is a log of a book collection, those 13-digit numbers may now be identified as ISBNs - information that refers to the book, but is not itself the information within the book. For example: by itself, a database containing several numbers, all 13 digits long could be the results of calculations or a list of numbers to plug into an equation - without any other context, the numbers themselves can be perceived as the data. However, without context and a point of reference, it might be impossible to identify metadata just by looking at them. As such, metadata can be stored and managed in a database, often called a metadata registry or metadata repository. 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. In essence, metadata answers who, what, when, where, why, and how about every facet of the data that is being characterized.įor example, a digital image may include metadata that describe how large the picture is, the color depth, the image resolution, when the image was created, and other data. Word documents, pictures, music files, etc). Metadata consists of information that characterizes data (e.g. Location on a computer network where the data was created.Metadata (metacontent) is defined as the data providing information about one or more aspects of the data, such as: Today's article or post is going to base on images and their metadata's. Welcome to my tutorial and in this tutorial, We are going to talk as well as know of the possible dangers of metadata in our day to day images. NOTICE: Ciuffy will be answering questions related to my articles on my behalf as I am very busy.
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