Models and their construction

Abstract

A model is formally defined as an object or concept designed according to a structural, functional or logical analogy to a corresponding origin in the real world. It is mainly used to solve a problem or find an answer for which a solution or answer, under the prevailing conditions, through direct operation on the origin, is unfeasible, difficult or impossible. Mathematical models like the previously mentioned equation of Einstein are logical constructions based on the essential quantitative or geometrical relations connecting the basic parameters of the original substrate, so that it allows an access to general information, explanation or prediction of behavioural or evolutionary patterns of the investigated object or phenomenon. Such patterns may serve as bases for work hypotheses, theories or laws, describing or controlling the investigated problem. Thus; we may conclude that models are abstractions of real systems. They may be mathematical or descriptive (geometrical). They may, or may not, be accurate or inaccurate, depending on the information used in their construction.