scholarly journals Interval network analysis in project management

2020 ◽  
Vol 7 (2) ◽  
pp. 99-113
Author(s):  
Radhakrishnan S ◽  
Saikeerthana D
Keyword(s):  
Project Management ◽  
Network Analysis ◽  
Fuzzy Numbers ◽  
Critical Path ◽  
Critical Path Method ◽  
Project Duration ◽  
Numerical Examples ◽  
Trapezoidal Fuzzy Numbers ◽  
Project Network ◽  
Fuzzy Parameters

This paper deals with an analysis of Critical Path Method (CPM) and Programme Evaluation Review Technique (PERT) in Project Network. Here, we solve the PERT and CPM methodology using intervals and we determine the critical path and project duration of the network. We can also convert the fuzzy parameters (triangular and trapezoidal fuzzy numbers) into intervals using α − cuts. After which, we calculate the project duration and critical path. To illustrate this, numerical examples are provided.

scholarly journals Using Metric Distance Ranking Method to Find Intuitionistic Fuzzy Critical Path

2015 ◽  
Vol 2015 ◽  
pp. 1-12 ◽  
Author(s):  
P. Jayagowri ◽  
G. Geetharamani
Keyword(s):  
Fuzzy Numbers ◽  
Critical Path ◽  
Method Comparison ◽  
Critical Length ◽  
Ranking Method ◽  
Critical Path Method ◽  
Intuitionistic Fuzzy Numbers ◽  
Intuitionistic Fuzzy ◽  
Project Network ◽  
Metric Distance

Network analysis is a technique which determines the various sequences of activities concerning a project and the project completion time. The popular methods of this technique which is widely used are the critical path method and program evaluation and review techniques. The aim of this paper is to present an analytical method for measuring the criticality in an (Atanassov) intuitionistic fuzzy project network. Vague parameters in the project network are represented by (Atanassov) intuitionistic trapezoidal fuzzy numbers. A metric distance ranking method for (Atanassov) intuitionistic fuzzy numbers to a critical path method is proposed. (Atanassov) Intuitionistic fuzzy critical length of the project network is found without converting the (Atanassov) intuitionistic fuzzy activity times to classical numbers. The fuzzified conversion of the problem has been discussed with the numerical example. We also apply four different ranking procedures and we compare it with metric distance ranking method. Comparison reveals that the proposed ranking method is better than other raking procedures.

scholarly journals Scheduling And Cost Analysis Program For Project Management

1989 ◽  
pp. 1-4
Author(s):  
Che Mat Ismail ◽  
Ghazali Sulong ◽  
Safie Mat Yatim
Keyword(s):  
Project Management ◽  
Network Analysis ◽  
Cost Analysis ◽  
Critical Path ◽  
Analysis Program ◽  
Critical Path Method ◽  
Activity Scheduling ◽  
End User ◽  
Analysis Techniques ◽  
Construction Works

This article describes the important element involved in project management, especially the construction works. The methods are based on the network analysis techniques. The designed package is capable to perform the scheduling of the project's activities and the calculation of various costs involved. Besides those,the package also permits the end user to print or display various type of outputs and they are menu driven. Keyword: network analyis, activity scheduling, CPM (Critical Path Method), cost analysis

scholarly journals Multi Objective Multi Mode Project Management Problem in Triangular Fuzzy Environment

2020 ◽  
Vol 9 (2) ◽  
pp. 1772-1781
Keyword(s):  
Project Management ◽  
Fuzzy Numbers ◽  
Critical Path ◽  
Decision Makers ◽  
Programming Approach ◽  
Management Problem ◽  
Linguistic Variables ◽  
Multi Objective ◽  
Fuzzy Environment ◽  
Multi Mode

Execution of any project with optimum duration, cost, quality and risk is very significant for project administrators in recent very competitive commercial situation. Sometimes it is not possible to have detailed earlier statistics about project criteria. In such situations, estimation of different Decision makers are considered in linguistic variables and altered into triangular fuzzy numbers as fuzzy numbers have ability to deal with vagueness. In this paper, we frame a new multi-mode multi objective critical path problem and suggest a possibilistic methodology to find critical path for a project where three decision makers’ views are considered as three modes of execution in terms of linguistic variables. We have formulated model of multiple mode in project network problem and find its solution with fuzzy programming approach with exponential membership and linear membership function. The proposed approach is useful to solve multi-mode project management problem which calculates optimal critical path according to four criteria- time, cost, risk and quality with three activities modes of execution in fuzzy environment.

Fuzzy Critical Path Method Based on a New Approach of Ranking Fuzzy Numbers using Centroid of Centroids

2013 ◽  
Vol 3 (2) ◽  
pp. 16-31 ◽  
Author(s):  
N. Ravi Shankar ◽  
B. Pardha Saradhi ◽  
S. Suresh Babu
Keyword(s):  
Fuzzy Numbers ◽  
Critical Path ◽  
Successful Implementation ◽  
Critical Path Method ◽  
Time Duration ◽  
New Approach ◽  
Planning And Control ◽  
Complex Projects ◽  
And Control ◽  
First Time

The Critical Path Method (CPM) is useful for planning and control of complex projects. The CPM identifies the critical activities in the critical path of an activity network. The successful implementation of CPM requires the availability of clear determined time duration for each activity. However, in practical situations this requirement is usually hard to fulfil since many of activities will be executed for the first time. Hence, there is always uncertainty about the time durations of activities in the network planning. This has led to the development of fuzzy CPM. In this paper, a new approach of ranking fuzzy numbers using centroid of centroids of fuzzy numbers to its distance from original point is proposed. The proposed method can rank all types of fuzzy numbers including crisp numbers with different membership functions. The authors apply the proposed ranking method to develop a new fuzzy CPM. The proposed method is illustrated with an example.

scholarly journals On Fuzzy Critical Path Method Based On Ranking Of Various Type-2 Fuzzy Quantities Using Centroid Of Centroids

2019 ◽  
Vol 8 (6) ◽  
pp. 910-920
Keyword(s):  
Path Analysis ◽  
Explicit Form ◽  
Fuzzy Numbers ◽  
Critical Path ◽  
Simple Approach ◽  
Membership Functions ◽  
Project Network ◽  
Generalized Type ◽  
Activity Times

This paper proposes a simple approach to critical path analysis in a project network with activity times being intervals and which are converted into various Type-2 fuzzy quantities. The idea is based on generalized type-2 trapezoidal, hexagonal and octagonal fuzzy numbers and its ranking. The explicit form of membership functions of the type-2 fuzzy activity times is not required in the proposed approach. Moreover, the method is very simple and the numerical example is given for demonstrating and comparing the proposed approach with generalized type-2 trapezoidal, hexagonal and octagonal fuzzy numbers through proposed ranking function.

scholarly journals Evaluasi Pelaksanaan Proyek Drainase Dengan Metode CPM Dan PERT

2020 ◽  
Vol 9 (1) ◽  
pp. 44-52
Author(s):  
Gunaedy Utomo ◽  
Irna Hendriyani ◽  
Siti Nor Aida
Keyword(s):  
Critical Path ◽  
Project Evaluation ◽  
Time Schedule ◽  
Critical Path Method ◽  
Project Duration ◽  
Work Activities ◽  
Weekly Report ◽  
Critical Paths

This research purposes to evaluate the implementation of the drainage project in Jl. Mulawarman, Gg. Arjuna, Sepinggan. This research uses the CPM (Critical Path Method) and the PERT (Project Evaluation and Review Technique). Based on the budget plan, time schedule, weekly report, documentation and interview found that the result of the CPM with two critical paths are work activities. The first critical path are: Activity A (Mobilization and Demobilization), Activity C (Landfilling activity), Activity F (Concrete works K-175, Ready Mix). The second critical path are: Activity A (Mobilization and Demobilization), Activity E (Begisting work for black channels), and Activity G (Plain U24 Concrete Iron Works). Meanwhile, the result of PERT has 49% chance to be completed with the project duration of 18 weeks.

scholarly journals Trapezoidal Fully Fuzzy Sylvester Matrix Equation with Arbitrary Coefficients

2021 ◽  
Author(s):  
Ahmed Elsayed ◽  
Nazihah Ahmad ◽  
Ghassan Malkawi
Keyword(s):  
Linear Equation ◽  
Matrix Equation ◽  
Analytical Methods ◽  
Fuzzy Numbers ◽  
Coefficient Matrix ◽  
Sylvester Matrix Equation ◽  
Numerical Examples ◽  
Trapezoidal Fuzzy Numbers ◽  
Sylvester Matrix ◽  
Methods Numerical

Abstract Almost every existing method for solving trapezoidal fully fuzzy Sylvester matrix equation restricts the coefficient matrix and the solution to be positive fuzzy numbers only. In this paper, we develop new analytical methods to solve a trapezoidal fully fuzzy Sylvester matrix equation with restricted and unrestricted coefficients. The trapezoidal fully fuzzy Sylvester matrix equation is transferred to a system of crisp equations based on the sign of the coefficients by using Ahmd arithmetic multiplication operations between trapezoidal fuzzy numbers. The constructed method not only obtain a simple crisp system of linear equation that can be solved by any classical methods but also provide a widen the scope of the trapezoidal fully fuzzy Sylvester matrix equation in scientific applications. Furthermore, these methods have less steps and conceptually easy to understand when compared with existing methods. To illustrate the proposed methods numerical examples are solved.

scholarly journals EVALUASI MANAJEMEN WAKTU PROYEK MENGGUNAKAN METODE PERT DAN CPM PADA PENGERJAAN “PROYEK REPARASI CRANE LAMPSON” DI PT MCDERMOTT INDONESIA

2019 ◽  
Vol 1 (1) ◽  
pp. 28-36
Author(s):  
Junafuji Oka ◽  
Dwi Kartikasari
Keyword(s):  
Project Scheduling ◽  
Critical Path ◽  
Project Evaluation ◽  
Critical Path Method ◽  
Time Efficiency ◽  
Project Duration ◽  
Project Completion

Project scheduling is one of the elements of planning outcomes, which can provide information about project schedules and project progress in terms of resource performance in terms of cost, labor, equipment and materials and project duration plan with time efficiency for project completion. Critical Path Method (CPM) and Project Evaluation Review Technic (PERT) are two project scheduling methods that use different approaches in the process. In making a project, the researcher assumes that the initial success of a project should begin with the planning and preparation of the correct phase and the systematic stage

scholarly journals Defuzzification Formula for Modelling and Scheduling A Furniture Fuzzy Project Network

2019 ◽  
Vol 9 (1S5) ◽  
pp. 279-283
Keyword(s):  
Fuzzy Numbers ◽  
Critical Path ◽  
Numerical Example ◽  
Research Article ◽  
Duration Time ◽  
Project Network

-This research article presents a new defuzzification formula for deciding the critical path in a proposed network. Here we introduce an octagonal fuzzy numbers for representing the duration time. It is shown that it is better to use octagonal fuzzy numbers towards determining the critical path. A numerical example is given and the proposed formula as compared with the existing fuzzy numbers.

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