New Heuristic for Constrained Non- Renewable Resource Allocation in Stochastic Metagraphs with Discrete Random Times
|International Journal of Engineering Trends and Technology (IJETT)||
|© 2018 by IJETT Journal|
|Year of Publication : 2018|
|Authors : Maryam Ebrahimi Erdi, Seyed Saeid Hashemin
|DOI : 10.14445/22315381/IJETT-V60P226|
Maryam Ebrahimi Erdi, Seyed Saeid Hashemin"New Heuristic for Constrained Non- Renewable Resource Allocation in Stochastic Metagraphs with Discrete Random Times", International Journal of Engineering Trends and Technology (IJETT), V60(3),172-179 June 2018. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
In recent years, some researchers have attempted to show projects using metagraphs. In real word projects, activity durations are non-deterministic. Non-deterministic quantities can be shown with random variables. Here, it is assumed that the activity duration is a discrete random variable with a known probability function. It is supposed that a certain type ofnon-renewable (consumable) resource is necessary to execute the activities. However, the amount of the available resource is constrained and known. In addition, probability function of activity time depends on the resource allocated to it. In this research, a new heuristic algorithm has been developed to allocate the constrained consumable resource to the edges (activities) of the metagraph such that, the delay in project completion time is decreased. In other words, the probability of project completion before the due date is maximized. Some examples have been solved using the new and previous algorithms. Then, results have been compared. This probability has been used for time-cost trade off in the project, in a way that the total cost of project is minimized. Therefore, the optimum value of the resource is defined.
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Time-cost trade off; Consumable resource allocation; Stochastic metagraph; Project completion time.