A conceptual model is a theoretical representation of a system, e.g. a set of equations attempting to describe the workings of the atmosphere for the purpose of weather forecasting. Conceptual model (computer science) , a representation of entities and their relationships Mathematical model , a description of a system using mathematical concepts and language Economic model , a theoretical construct representing economic processes Statistical model , a mathematical model that usually specifies the relationship between one or more random variables and other non-random variables Model (CGI) , a mathematical representation of any surface of an object in three dimensions via specialized software Model (logic) , a set along with a collection of finitary operations, and relations that are defined on it, satisfying a given collection of axioms Model (MVC) , the central component of the model–view–controller software design pattern Standard model (disambiguation) Medical model , a proposed &q