OR has some limitations however, these are related to the problem of model building and the time and money factors involved in application rather than its practical utility.

**Limitations of Operations Research**

OR has some limitations however, these are related
to the problem of model building and the time and money factors involved in
application rather than its practical utility. Some of them are as follows:

**(i)
Magnitude of Computation**

Operations research models try to find out optimal
solution taking into account all the factors. These factors are enormous and
expressing them in quantity and establishing relationships among these require
voluminous calculations which can be handled by computers.

**(ii)
Non-Quantifiable Factors**

OR provides solution only when all elements related
to a problem can be quantified. All relevant variables do not lend themselves
to quantification. Factors which cannot be quantified find no place in OR
study. Models in OR do not take into account qualitative factors or emotional
factors which may be quite important.

**(iii)
Distance between User and Analyst**

OR being specialist’s job requires a mathematician
or statistician, who might not be aware of the business problems. Similarly, a
manager fails to understand the complex working of OR. Thus there is a gap between
the two. Management itself may offer a lot of resistance due to conventional
thinking.

**(iv)Time and Money Costs**

When basic data are subjected to frequent changes, incorporating them
into the OR models is a costly proposition. Moreover, a fairly good solution at
present may be more desirable than a perfect OR solution available after
sometime. The computational time increases depending upon the size of the
problem and accuracy of results desired.

**(v) Implementation**

Implementation of any decision is a delicate task. It must take into
account the complexities of human relations and behaviour. Sometimes,
resistance is offered due to psychological factors which may not have any
bearing on the problem as well as its solution.
Tags : Operations Management - Introduction to Operations Research

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