Modern Theories of Organization Modern organization theories are classified into quantitative theory, system theory and contingency theory. 1. Quantitative Theory The quantitative theory includes operation research and quantification of the problem. It analyses the problems from quantifiable angles and provides solutions to complex problems only with the help of statistical and mathematical models such as linear and non-linear programming, game theory, decision tree, simulation and probability. Computers are used to solve management problems whereas mathematical models were previously used for the purpose. A large number of problems are solved with the use of simulation equations and computers. The development of equations requires specialized skills and advance knowledge of mathematics, statistics, economics and behavioral sciences. Models are tested while the context of the real world and use of operation research. Operation research is conducted by diverse specialists and management experts. 2. System Theory A system is a set of interconnected and inter-related elements of management activity. It is an arrangement of components of activities performed for achieving certain objectives. Thus, a system has three components: arrangement, objectives and a plan. The arrangement is designed and planned in an effective manner to achieve the objective. Men, materials and money are planned to achieve the objectives of the organization. Recently, it has been agreed that the organization is a system wherein operation, marketing, finance, etc. are subsystems. MBA - Knowledge base