Operation Research Module 1

Scope of Operation research :

• Road Traffic management

• Agriculture

• Psychology

• Cost allocation

 $t_e=\frac{t_0+4t_m+t_p}{6}$  is the formula for :

• Elapsed Time
  

• Extra Time
  

• Expected Time
  

• Earliest Time
  

Transportation model problems are used to minimize :

• Transportation Cost

• Packaging Cost

• Shipping Cost

• Manufacturing Cost

Advantage of LPP:

• Figuring out Bottlenecks

• Improved Manufacturing Process

• Better utilization of resources

• Model based Solution

Application of Linear Programming:

• Portfolio Selection problem

• Queue management

• Military Applications

• Health Applications

(a)   is assumed in all liner programming models that all parameters be be constant and known.

LPP consist of three components :

• Constrain

• Time elapsed

• Activities

• Objective function

Limitation of Linear Programming are :

• Not fitting Real Life situations

• No concrete answer

• suitable for small scale problems

• effect of time not measured

Problems concerned with assignment of human resource

• Transportation problem

• Assignment problems

• Utilization problem

• Minimization problems

Vogel Approximation is used to find initial solution for :

• Assignment problems

• PERT

• Transportation problem

• LPP