**Operations Research**

World War II with its complex problems of logistics control and weapons systems design provided the impetus for the development of the interdisciplinary mathematically oriented field of operations research. Operations research (OR) brings together practitioners in such diverse fields as mathematics psychology and economics. Specialists in these disciplines customarily form a team to structure and analyze a problem in antiquarian rems so that a mathematically optimal solution can be obtained Operations research or its approximate synonym management science now provides many of the sophisticated

quantitative tools that are used today in operations management as well as in other business disciplines.