In common usage, data (/ derte/, aiso Us: / deste) is a collection of discrete or continuous values that<br>convey information, describing the quantity, quality, fact, statistics, other basic units of meaning, or<br>simply sequences of symbols that may be further interpreted formally. A datum is an individual value<br>in a collection of data. Data are usually organized into structures such as tables that provide<br>additional context and meaning, and may themselves be used as data in larger structures. Data may<br>be used as variables in a computational process [12] Data may represent abstract ideas or concrete<br>measurements [*! Data are commonly used in scientific research, economics, and virtually every<br>other form of human organizational activity. Examples of data sets include price indices (such as the<br>consumer price index), unemployment rates, literacy rates, and census data. In this context, data<br>represent the raw facts and figures from which useful information can be extracted<br>