Many knowledge-intensive projects such as new product and software design, research and high technology development have flexible scope and involve co-production between a client and a vendor. In such projects, it is often challenging to estimate how much progress can be achieved within a certain time window or how much time may be needed to achieve a certain degree of progress, especially beca...

Given a stochastic project network with independently distributed activity durations, several approaches to bound the distribution function of the project completion time have been proposed. We have implemented the most promising of these algorithms and compare their behavior on a basis of nearly 2000 instances with up to 1200 activities of different test-beds. We propose a suitable numerical r...

Sanjeev Khanna University of Pennsylvania 11.

The minimum weighted completion time problem involves (i) a set J of n jobs, a positive weight wj for each job j ∈ J , and a release date rj before which it cannot be scheduled; (ii) a set of m machines, each of which can process at most one job at any time, and (iii) an arbitrary set of positive values {pi,j}, where pi,j denotes the time to process job j on machine i. A schedule involves assig...

An interval parameter two-stage stochastic model for project budgeting and scheduling is developed to dealing with the uncertainties residing in the project management. The model focuses on the probability distribution in activity durations and the uncertainties expressed as intervals in costs. It minimizes the inexact costs (direct costs, indirect costs and penalties) with reference to the spe...

Acknowledgement Thanks are owed to a number of people, without whose help this project would not have been possible. First, to the members of my examining committee: Dr. Randy R. suggestions, and general support were instrumental in helping to focus and define the scope of the project. Particular thanks go to my committee chair, Dr. Rapp, a faithful reviewer and provider of direction. By any me...

Project scheduling problem is to determine the schedule of allocating the loans to a project in order to balance the total cost and the completion time of the project under some constraints. This paper considers project scheduling problem in an uncertain environment, of which the duration time of each activity is an uncertain variable. Then uncertain chance-constrained programming model is cons...

  Selecting an effective project plan is a significant area in the project management. The present paper introduces a technique to identify the project plan efficient frontier for assessing the alternative project plans and selecting the best plan. The efficient frontier includes two criteria: the project cost and the project time. Besides, the paper presents a scheme to incorporate Directed Ac...

Real estate market and housing projects play a vital role in the economy of Pakistan. This study has been conducted with an aim to explore relationship between project planning factors & on-time completion real Sample data comprised 440 observations was collected through structured questionnaire from contractors, managers, engineers supervisors related construction projects. Confirmatory Fa...