What is Operations Research? Definition, Meaning, and Expert Definitions

Operations Research (OR) is a scientific and mathematical approach used to solve complex decision-making problems and achieve the best utilization of limited resources. It helps organizations make optimal decisions by applying analytical techniques, mathematical models, and scientific methods. In simple words, Operations Research is the scientific and mathematical method of making the best decisions under given conditions and constraints.

Operations Research is also known as Operational Analysis. In British English, it is called Operational Research, and it is commonly abbreviated as OR (That is, it is often shortened to the initialism OR).

Introduction of Operations Research

Suppose you have limited resources: money, time, workers, machines, fuel, or raw materials; but you want to achieve the best possible result. How should you use these resources?

This is the basic question that Operations Research (OR) tries to answer.

In simple words:

Operations Research is the scientific and mathematical method of making the best decisions under given conditions and constraints.

Operations Research is an approach to decision-making that uses scientific methods, mathematical models, and analytical techniques to determine optimal solutions to complex problems. Hence, OR is a scientific method that provides executives and managers with a quantitative basis for decisions concerning operations under their control.

What is Operations Research

Operations Research is a branch of mathematics and management science that focuses on improving decision-making through scientific analysis. It uses quantitative techniques to determine the most efficient way to allocate resources, minimize costs, maximize profits, and optimize overall system performance.

It is often described as:

• The Science of Better Decision-Making
• The Science of Use
• Quantitative Common Sense
• A Scientific Approach to Problem-Solving

In simple words, Operations Research helps managers and decision-makers find the best possible solution among many alternatives.

Why Was Operations Research Developed?

Operations Research originated during World War II.

Military leaders had problems such as:

• How many aircraft should be used?
• Which routes should ships follow?
• How should radar systems be used effectively?
• How can enemy attacks be minimized?

Scientists and mathematicians worked together to find the best solutions mathematically. Their success led to the development of Operations Research.

After the war, these techniques were applied to:

• Industries
• Transportation
• Business
• Agriculture
• Finance
• Healthcare
• Education

Expert Definitions of Operations Research

There is no single universally accepted definition of Operations Research. Over the years, many scholars and researchers have defined OR according to its development and applications. OR has been defined so far in various ways and has still not been defined authoritatively. Operations Research has been variously described as the “Science of Use”, “Quantitative commonsense”, and “Scientific approach to decision-making problems”. OR deals with problems concerning the best utilization of limited resources.

Some important and interesting opinions about the definition of OR which have been changed according to the development of the subject been given below:

1. P M Morse & GE & Kimball (1946)

Operations Research is a scientific method of providing executive departments with a quantitative basis for decisions regarding the operations under their control.

2. Miller & Starr

Operations Research is the art of winning the war without actually fighting it.

3. T.L. Saaty (1958)

Operations Research is the art of finding bad answers to problems to which otherwise worse answers are given.

4. H.M. Wagner

Operations Research is a scientific approach to problem-solving for Executive Management.

5. C.W. Chuchman, R.L. Ackoff (1957)

OR is the application of scientific methods, techniques and tools to problems involving the operations of systems so as to provide those in control of the operations with optimum solutions to the problem.

6. Operations Research Society, UK (1971)

OR is concerned with scientifically deciding how to best design & operate man-machine systems usually requiring the allocation of scarce resources.

7. E.L. Arnoff M.J.Netzorg

OR is the systematic, method-oriented study of the basic structure, characteristics, functions and relationships of an organization to provide the execute with a sound, scientific and quantitative basis for decision making.

8. Daellenbach & George

OR is the systematic application of quantitative methods, techniques and tools to the analysis of problems involving the operation of a system.

9. F S Hiller & G J Lieberman

OR may be described as a scientific approach to decision-making that involves the operations of an organizational system.

10. H A Taha

This new decision-making field has been characterized by the use of scientific knowledge through interdisciplinary team effort for the purpose of determining the best utilization of limited resources.

11. Churchman, Ackoff and Arnoff

OR, in the most general sense, can be characterized as the application of scientific methods, techniques and tools, to problems involving the operations of a system so as to provide those in control of the operations with optimum solutions to the problems.

Simple Meaning of Operations Research

In simple terms, Operations Research is the scientific study of decision-making problems aimed at obtaining the best possible solution while making efficient use of limited resources.

It combines mathematics, statistics, economics, engineering, and computer science to improve planning and management.  

What Is an Optimal Decision?

A decision, which takes into account all the present circumstances can be considered the best one, is called an "optimal decision".

An optimal decision is the best decision among all possible alternatives after considering all existing conditions, constraints, and available resources.

The primary objective of Operations Research is to help organizations make optimal decisions that maximize benefits and minimize costs.

(Source – Various books of college library)

 

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