Evaluation of Methods for Optimizing a Resource-Constrained Project. Part 1

10.12737/1240 ◽  
2013 ◽  
Vol 2 (3) ◽  
pp. 13-25 ◽  
Author(s):  
������� ◽  
Igor Tsarkov
Keyword(s):  
Renewable Resources ◽  
Optimization Methods ◽  
Project Schedule ◽  
Schedule Management ◽  
Project Completion ◽  
Time Optimization ◽  
Soviet Time ◽  
Project Scheduling Problem ◽  
Problem Library ◽  
Computer Simulation Technique

Optimizing projects with constrained renewable resources is one of the most important issues in the theory of project schedule management, as such optimization allows to substantially reduce project completion period and to enhance project resource efficiency. Certain methods for solving this problem had been developed and practiced in the Soviet times, but regrettably their effectiveness still have not been compared to that of methods developed in the other countries. The author�s findings concerning the effectiveness of those Soviet-time optimization methods are presented in this paper. The results are obtained through internationally-recognized computer simulation technique and with the use of The Project Scheduling Problem Library (PSPLIB) databases.

scholarly journals A Critical Design Structure Method for Project Schedule Development under Rework Risks

2019 ◽  
Vol 11 (24) ◽  
pp. 7229
Author(s):  
Guofeng Ma ◽  
Jianyao Jia ◽  
Tiancheng Zhu ◽  
Shan Jiang
Keyword(s):  
Resource Constraints ◽  
Project Schedule ◽  
Management Tools ◽  
Simulation Methodology ◽  
Schedule Management ◽  
Critical Design ◽  
Design Structure ◽  
Activity Sequence ◽  
Impact Area ◽  
Critical Chain

In order to overcome the difficulty in quantifying rework by traditional project schedule management tools, this study proposes an innovative method, namely improved Critical Chain Design Structure Matrix (ICCDSM). From the perspective of information flow, the authors firstly make assumptions on activity parameters and interactions between activities. After that, a genetic algorithm is employed to reorder the activity sequence, and a banding algorithm with consideration of resource constraints is used to identify concurrent activities. Then potential criticality is proposed to measure the importance of each activity, and the rework impact area is implicated to indicate potential rework windows. Next, two methods for calculating project buffer are employed. A simulation methodology is used to verify the proposed method. The simulation results illustrate that the ICCDSM method is capable of quantifying and visualizing rework and its impact, decreases iterations, and improves the completion probability. In this vein, this study provides a novel framework for rework management, which offers some insights for researchers and managers.

The Optimization of Project Time-Cost Based on Particle Swarm Optimization Algorithm

2013 ◽  
Vol 791-793 ◽  
pp. 1423-1426
Author(s):  
Hai Min Wei ◽  
Rong Guang Liu
Keyword(s):  
Particle Swarm Optimization ◽  
Particle Swarm Optimization Algorithm ◽  
Cost Optimization ◽  
Particle Swarm ◽  
Implementation Process ◽  
Pso Algorithm ◽  
Project Schedule ◽  
Swarm Optimization ◽  
Schedule Optimization ◽  
Schedule Management

Project schedule management is the management to each stage of the degree of progress and project final deadline in the project implementation process. Its purpose is to ensure that the project can meet the time constraints under the premise of achieving its overall objectives.When the progress of schedule found deviation in the process of schedule management ,the progress of the plan which have be advanced previously need to adjust.This article mainly discussed to solve the following two questions:establish the schedule optimization model by using the method of linear;discuss the particle swarm optimization (PSO) algorithm and its parameters which have effect on the algorithm:Particle swarm optimization (PSO) algorithm is presented in the time limited project and the application of a cost optimization.

Application of Fuzzy Comprehensive Evaluation Method Considering Risk Factors in Project Schedule Management

2012 ◽  
Vol 594-597 ◽  
pp. 2976-2981
Author(s):  
Qing Lin Yi ◽  
Juan Juan Wu ◽  
Tian Fan Dai
Keyword(s):  
Risk Factors ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Time Limit ◽  
Project Schedule ◽  
Construction Period ◽  
Reasonable Time ◽  
Comprehensive Evaluation Method ◽  
Schedule Management

The reliability of schedule management directly affects the project cost and quality. Time limit is the most important part in schedule management. The determination of reasonable time limit can save cost for investors, and ensure project quality .Based on this characteristic, this paper adopts utility curve to carry out risk analysis for risk factors, eliminates unreliable construction period and carries on fuzzy comprehensive evaluation for the rest of the possible period. Then it got scientific and reasonable time limit. The method can determine the construction period credibly and is used to guide engineering practical.

scholarly journals Project Scheduling Management in the Software Industry

2021 ◽  
Vol 12 (3) ◽  
pp. 2136-2145
Author(s):  
Rozi Nor Haizan Nor Et.al
Keyword(s):  
Project Scheduling ◽  
Project Planning ◽  
Resource Constraint ◽  
Project Schedule ◽  
Managing Change ◽  
Project Scheduling Problem ◽  
Common Problems ◽  
The Impact ◽  
Scheduling Management ◽  
Project Delay

Project scheduling is the next step once project planning is completed. This requires knowledge and the depth of the activities, the dependencies between activities and, duration of the activities. Creating and designing a realistic project schedule is the biggest challenges a project manager faces. There are some common problems that can be impact towards project delay or performance: Assigning Resource or Resource Constraint, Managing the Unknown or Managing Change and Estimating Task Duration. These 3 factors and causes are contributing to project scheduling problem. The impact of resource constraint causes towards be impact towards project delay or performance.  To achieve this goal, the survey has been conducted. Finally, the results of the surveys are presented in order to see which commons problems are the most happening and really effected project scheduling.

scholarly journals Onshore Oil and Gas Design Schedule Management Process Through Time-Impact Simulations Analyses

2019 ◽  
Vol 11 (6) ◽  
pp. 1613
Author(s):  
Daekyoung Yi ◽  
Eul-Bum Lee ◽  
Junyong Ahn
Keyword(s):  
Construction Projects ◽  
Oil And Gas ◽  
The Body ◽  
Management Process ◽  
Design Phase ◽  
Project Schedule ◽  
Schedule Management ◽  
Body Of Knowledge ◽  
Design Activities ◽  
Design Schedule

Korean oil and gas contractors have recently incurred significant losses due to improper engineering performance on EPC (engineering procurement and construction) projects in overseas markets. Several previous studies have verified the significant impact engineering has on EPC construction cost and project lifecycle. However, no literature has studied the time impact engineering has on EPC projects, representing a gap in the existing body of knowledge. To fill this gap, a Monte Carlo simulation was performed with the Pertmaster, Primavera risk analysis software for three sample onshore oil and gas projects. From said simulation of all major EPC critical activities, the authors found that the engineering phase is up to 10 times as impactful as the procurement and construction phases on the overall schedule duration. In assessing the engineering activities, the authors found the piping design activities to have the greatest impact on the overall schedule performance. Using these findings, the authors present a design schedule management process which minimizes the delays of project completion in EPC projects. Said process includes the following six steps: (1) Milestone management, (2) drawing status management, (3) productivity management of engineering, (4) interface management, (5) management of major vendor documents, and (6) work front management. The findings of this paper add to the body of knowledge by confirming the design phase to be the most impactful on the overall project schedule success. Furthermore, the presented design schedule management will aid industry with successfully executing the design phase in a timely manner, including examples from case study projects for a greater understanding.

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