Scientific modelling is a scientific activity, the aim of which is to make a particular part or feature of the world easier to
understand,
define,
quantify, visualize, or
simulate by referencing it to existing and usually commonly accepted knowledge. It requires selecting and identifying
relevant aspects of a situation in the real world and then using different types of models for different aims, such as
conceptual models to better understand, operational models to
operationalize,
mathematical models to quantify, and
graphical models to visualize the subject. Modelling is an essential and inseparable part of scientific activity, and many scientific disciplines have their own ideas about specific types of modelling.