2. The term 'operations research' was
coined in 1940 by McCloskey and
Trefethen in a small (own of
Bawdsey in England. It is a science that
came into existence in a military
context.
3. The new approach to the
systematic and scientific study of
the operations of the system was
called Operations Research (OR),
or operational research.
OR can be termed as 'an art of
winning a war without actually
fighting it’
4. Operations Research is the art of giving bad answers to
the problems to which otherwise worse answers are
given
-T.L.Saaty.
5. Operations Research is a scientific approach to problem
solving for executive management.
-H.M. Wagner
6.
7. Formulating the problem
Constructing the mathematical model
Deriving the solution from the model
Testing the model and its solution
Controlling the solution
Implementation
8. Models play a very important role in OR They
are representation of reality
Models provide descriptions and explanations
of the operations of the system that they
required. By experimenting on them, we can
determine how the changes in the relevant
system will effect its performance.
A model in OR may be defined as an idealized
representation of a real life system
9. Iconic
• Physical
replicas (scalar
representation)
of real objects
Analog
• Physical in
form, but do
not physically
resemble the
objects being
modeled.
Mathematical
• Represent real
life problems
through a
system of
mathematical
formulas etc…
10. Linear programming(graphical and simplex)
Transportation problems
Queuing theory
Game theory
Simulation & Monto Carlo technique
Dynamic programming
