Abolfazl Kazemi; Pasha Pasha Fakhori; Ali Shakourloo,
Volume 13, Issue 38 , October 2015, , Pages 41-69
Abstract
Accurate scheduling of project is one of the main fundamentals and essential success factors of the project management and also accordance of planning and implementation is considered as the main subject of project management. In this paper, it is tried to propose a practical and suitable system in order ...
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Accurate scheduling of project is one of the main fundamentals and essential success factors of the project management and also accordance of planning and implementation is considered as the main subject of project management. In this paper, it is tried to propose a practical and suitable system in order to schedule various projects more accurately. Currently Program Evaluation and Review Technique (PERT) is used extensively for management of large- scaled projects. In traditional methods of PERT technique, implementation time of each activity is obtained in the form of definite figures or through Beta Distribution but in the real world; it is very hard to estimate the practical implementation time of each activity in an accurate way. By using fuzzy logic in order to overcome the problems related to uncertainty, fuzzy expert system is designed which many limitations and factors affecting the project completion time have been considered in this article. In this regard, output and input parameters of the system have been acquired by questionnaire and validation of the results has been analyzed. The obtained results indicate high power of the system in controlling different situations affecting the project completion time.
Majid Esmaelian; Kamran Feizi; Amir Afsar
Volume 10, Issue 26 , January 2012, , Pages 55-73
Abstract
In this paper, a nonlinear multi objective mathematical model forcrashing the PERT network is presented. The main purpose of thismodel is minimizing the pessimistic time of critical activities byallocating more budget. In fact, this model indicates how the budget isallocated among critical activities. ...
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In this paper, a nonlinear multi objective mathematical model forcrashing the PERT network is presented. The main purpose of thismodel is minimizing the pessimistic time of critical activities byallocating more budget. In fact, this model indicates how the budget isallocated among critical activities. The results show that decreasingthe pessimistic of critical activities lead to decreasing the time andvariance of project completion. This model increases the probabilityof project completion on time scheduling. A genetic algorithm is useto solve the nonlinear model
Heirsh Soltanpanah; Hiwa Farughi; Rohoullah Abdi
Volume 10, Issue 26 , January 2012, , Pages 147-164
Abstract
Project cost estimation and actual time is one of the serious concernsof project managers. Earned Value Management is considered as atechnique for answering two following questions: how long does ittake to complete a project? How much does the project cost? ProjectPerformance Evaluation can only be predicated ...
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Project cost estimation and actual time is one of the serious concernsof project managers. Earned Value Management is considered as atechnique for answering two following questions: how long does ittake to complete a project? How much does the project cost? ProjectPerformance Evaluation can only be predicated based on previousdata and knowledge in the present dealings of earned value and itsfuture conditions and prospects would not be categorically realized.Although there are many proposed methods to solve these boundaries,there is not a method encompassing all uncertainties and futureconditions. This paper aims at introducing a new method using timelimits, costs and project performance in fuzzy logic to determine theearned value indexes. Risk factors are added to the Fuzzy logics inorder to obtaining the precise estimation in predicting the finaloutcomes of the project. This paper provides a brief introductionregarding the current methods followed by investigation on Fuzzymethodology and risk factors. Finally, the offered model is proposed,defined and supported by means of an example
Laya Olfat; Farzaneh Khosravani; Reza Jalali
Volume 8, Issue 19 , December 2010, , Pages 147-163
Abstract
Risk is a potential which causes problems in the implementation of project and fulfillment of objectives. Risk is the innate part of all the projects and it is impossible to eliminate it completely though it can be managed effectively in order to reduce its effects on achieving the project’s objectives. ...
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Risk is a potential which causes problems in the implementation of project and fulfillment of objectives. Risk is the innate part of all the projects and it is impossible to eliminate it completely though it can be managed effectively in order to reduce its effects on achieving the project’s objectives. It may occur in the future or not, but its occurrence at least affects one objective including area, time, costs or quality. Therefore identification, analysis and ranking of risk would play a significant role in the fulfillment of project. In this paper, we applied PMBOK Standard for identification of project risk for the construction of flyover junctions in Boushehr Province, and then we used Fuzzy AIIP Technique and Fuzzy TOPSIS Technique for ranking of risk.
Maryam Akhavan; Moslem Alimohammadlo; Jafar Habibi
Volume 2, Issue 6 , September 2004, , Pages 27-44
Abstract
Nowadays using Information Technology to overcome rapid environmental changes and adopting flexibility is necessary and inevitable. ...
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Nowadays using Information Technology to overcome rapid environmental changes and adopting flexibility is necessary and inevitable. Yet, implementation ofIT projects in many cases is subject to failure. This research seeks to identify vital elements/factors of success and failure of IT projects in Iran and defining techniques to decrease the rate of failure. These elements/factors have been assessed under two general classifications: infrastructural including technical, human, economic, cultural, and management! administrative factors, and superficial, including size of the organization and the project, To identifying infrastructural factors, expert survey questionnaires has been applied. Results show that administrative/ management-strategic factors, and cultural - social are more important than financial - economic and technological - human factors. And most important of all is the absence of sufficient commitment on the side of senior managers of the organizations and unfamiliarity of people and authorities with the structure and performance 0 f IT. Superficial factors have been analyzed dynamically in two dimensions: size of the organization and the project. The results of the descriptive analysis shows that the larger the organization and the project, the higher the risk of failure.By the end, the conceptual model of the vital elements of success and failure of IT projects has been presented as well as suggestions for successful execution of such projects and future research in this field.
Laya Olfat; Hassan Hashemi
Volume 1, Issue 2 , October 2003, , Pages 55-82
Abstract
The prime objectives of Project Management are to minimize time and cost and to meet required performance. Value Engineering is an organized effort to attain optimum value in a system by providing the necessary functions to improve performance at the lowest cost. Value Engineering can contribute to the ...
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The prime objectives of Project Management are to minimize time and cost and to meet required performance. Value Engineering is an organized effort to attain optimum value in a system by providing the necessary functions to improve performance at the lowest cost. Value Engineering can contribute to the field of project management to achieve its objectives.
This paper explains a model of service project management with the aid of value Engineering.
