Introduction to Operations Research

Istiak Rayhan Adnan Ahmed Abu Sayed Emon Irfanul Haque Abul Hasnat Morshed

GROUP MEMBER

What is operations Research?

Applications of scientific methods , techniques and tools to the analysis and solution.

OR techniques are used for decision making.

The tools of operations research are not from any one discipline.

History of Operations Research

Pre-World War II Development (Early contributors include FW Taylor , Henry L Gnatt , AK Erlang.) During World War II Development (Used for effective allocation of limited military resoueces) Post-World war II Development

(Industries Adopting the techniques)

Objectives of Operations Research Decision making and improve its quality. Identify the optimum solution. Integrating the system. Improve the objectivity of analysis. Minimize the cost and maximize the profit. Improve the productivity. Success in competitions and market

leadership.

Scope of Operations Research National plans & budgets. Defense services operations. Government developments & public sector units. Industrial establishment & private sector units. R & D and engineering division. Public works department. Business management. Agriculture and Irrigation projects. Education & Training. Transportation and Communication.

Models of Operations Research

Methods of Operations Research

Analytical MethodTrial and error methodSimulation method

Phases of Operations Research

Problem identification Model Building Solution of the model Validation of the model Report generation

Advantages and Limitations of ORAdvantages : Logic and systematic approach. Indicates scope as well as limitations. Helps in finding avenues. Make the overall structure of problems.

Limitations: Quantification Information gap Money and time costs.

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