Ideal type
Ideal type (German: Idealtypus), also known as pure type, is a typological term most closely associated with sociologist Max Weber (1864–1920). For Weber, the conduct of social science depends upon the construction of abstract, hypothetical concepts. The "ideal type" is therefore a subjective element in social theory and research, and one of the subjective elements distinguishing sociology from natural science.
Meaning
An ideal type is formed from characteristics and elements of the given phenomena, but it is not meant to correspond to all of the characteristics of any one particular case. It is not meant to refer to perfect things, moral ideals nor to statistical averages but rather to stress certain elements common to most cases of the given phenomena. It is also important to pay attention that in using the word “ideal” Max Weber refers to the world of ideas (German: Gedankenbilder "thought pictures") and not to perfection; these “ideal types” are idea-constructs that help put the seeming chaos of social reality in order.