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运筹研究assignment-关键概念(5)

时间:2017-01-04 16:26来源:www.ukthesis.org 作者:英国论文网 点击联系客服: 客服:Damien
 
- In the pay-off matrix,if each pay-off in pth column is less than (or equal to ) the corresponding pay-off in the qth column , Bp dominates Bq .
 
b. Constituents of a Queuing System:- It includes
 
Arrival Pattern- It is the average rate at which the customers arrive.
Service Facility- Examining the number of customers served at a time and the statistical pattern of time taken for the service at the service facility.
Quene Facility - The common method of choosing a customer for service amongst those waiting for service is ‘First Come First serve’.
c. Difference between PERT and CPM.
 
PERT
 
It was developed in connection with an Research and Development work.
It is an event- oriented network as in the analysis of a network, emphasis is given on the important stages of completion of a task rather than the activities required to be performed to reach a particular event or task.
PERT is normally used for projects involving activities of non-repetitive nature in which time estimates are uncertain.
It helps in pinpointing critical areas in a project, so necessary adjustment can be made to meet the scheduled completion date of the project.
CPM
 
It was developed in connection with a construction project, which consisted of routine tasks whose resources requirement and duration were known with certainty, Therefore it is basically deterministic.
It is suitable for establishing a trade-off for optimum balancing between schedule time and cost of the project.
It used for projects involving activities of repetitive nature.
 
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