OPERATIONS RESEARCH eyma URCAN Industrial Engineering Department Dokuz

OPERATIONS RESEARCH Şeyma URCAN Industrial Engineering Department Dokuz Eylul University

What Is The Operations Research? Operational research, also known as operations research, is an interdisciplinary mathematical science that focuses on the effective use of technology by organizations. Operation Research 2

Operations Research; Ø People Ø Machine Ø Material Ø Money management Ø In Industry Ø Business Ø Government Ø Defense fields Operation Research 3

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Operation research is the application of advanced analytical methods to help make better decisions. Operation Research 6

This situation provides; ü More complete data ü Consideration of all available options ü Careful predictions of outcomes and estimates of risk ü The latest decision tools and techniques Operation Research 7

OR is closely related to industrial engineering. Industrial engineers have an engineering point of view and use techniques of operations research as the main tool. Operation Research 8

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OPTIMIZATION=TO OBTAIN THE BEST Optimization is a word that comes to mind first in operations research. Operation Research 10

Topics of Operations Research Optimization Inventory Theory Linear Programming Decision Analysis System Analysis Operation Research 11

Integrated Approach Interdisciplinary Approach Scientific Management PROPERTIES OF OPERATIONS RESEARCH Operation Research 12

Interdisciplinary Approach o Operations research is an interdisciplinary approach. Such as; ü Physics ü Chemistry ü Statistics Operation Research 13

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Integrated Approach (System Approach) o Operation research takes into account all elements of a problem that belong to organization, environment, and interaction between them. Operation Research 15

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Scientific Management Identification of the problem(formulation) The establishment of the model To obtain solution from model Testing of the model and the solution Implementation of the solution Operation Research 17

These issues; I. Defining goals II. Determination of the system which will impact the problem III. Determination of the constraints which will affect solution of problem IV. Determination of the assumptions V. Determination of an appropriate measure of effectiveness Operation Research 18

Identification Of The Problem Ø “Right solution” can not be obtained from the “wrong problem Ø The first and most important stage of the work is defining the problem well. Ø This phase helps examine the problem at hand quantitatively. Operation Research 19

The Establishment Of The Model Ø While modeling a specific problem, various symbols are used. Ø It is an isolated approach. Operation Research 20

Iconic (imitation) Model Analog (linear) Model Mathematical (symbolic) Model Operation Research 21

Obtaining Model Solution Ø This phase obtains an optimal solution for the model by using various techniques. Operation Research 22

Testing Of The Model Solution Ø Before the application of the model solution, the validity of model and reliability of the solution should be tested. Ø Validity of the model can be decided by comparing its outputs with the results of past. Operation Research 23

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Implementation Of The Solution Ø Implementation of the solution obtained from a validated model is a reliable solution to the real-life problems. Ø Implementation of the solution is the duty of operation research team. Operation Research 25

What Are The Areas Of Practices Of ‘OR’? What are the decision alternatives ? Which restrictions will be decided under ? What is the appropriate objective criteria used to evaluate the alternatives ? Operation Research 26

Operation research ensures the effective working of organizations by providing solutions to their various problems. Operation Research 27

• Operation research is a comprehensive and scientific feedback gathering method. This method should be applied on a continuous basis. Operation Research 28

Techniques Of Operations Research Operation Research 29

SOCIETIES v Operational Research Society, Turkey v. The International Federation of Operational Research Societies(IFORS) v. The Association of European Operational Research Societies(EURO) Operation Research 30

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