Data refers to information or facts usually collected as the result of experience, observation or experiment, or processes within a computer system, or premises. Data may consist of numbers, words, or images, particularly as measurements or observations of a set of variables. Data are often viewed as a lowest level of abstraction from which information and knowledge are derived.
Some British and UN academic, scientific and professional style guides request that authors treat data as a plural noun. Other international organizations, such as the
Data is now often treated as a singular mass noun in informal usage, but usage in scientific publications shows a divide between the