Some Results Concerning the Estimation of Beta Distribution Parameters in PERT

Farnum, Nicholas R.; Stanton, Laverne W.

doi:10.1057/jors.1987.45

Cited by 70 publications

(14 citation statements)

References 3 publications

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“…La estimación exacta de tiempo para poder completar las actividades en la utilización de este método es bastante difícil. (Farnum & Staton, 1987) Por lo tanto, para poder realizar una estimación de tiempo aproximada, se realiza primero tres tipos de estimaciones:…”

Section: Estimación De Tiempounclassified

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Modelación Matemática para la estimación de tiempos en un proyecto utilizando MATLAB-Simulink

et al. 2018

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Ciencias matemáticas Artículo de investigaciónModelación Matemática para la estimación de tiempos en un proyecto utilizando MATLAB-Simulink Mathematical Modeling for the estimation of times in a project using MATLAB- Simulink Modelagem Matemática para a estimativa de tempos em um projeto usando MATLAB-SimulinkResumen Para este trabajo se tomó en consideración la obtención del tiempo de duración de un proyecto de acuerdo con las actividades que son necesarias para lograr el objetivo de este, simulándolo en el paquete Simulink del software Matlab. Al automatizar mediante la ayuda del software se obtuvo resultados precisos y mucho más efectivos, en contraste de los que lo hiciera el gerente del proyecto de manera manual o utilizando un software para la gestión de proyectos.Palabras clave: estimación de tiempo; software; Matlab; Simulink. AbstractFor this work it was taken into consideration the obtaining of the duration of a project according to the activities that are necessary to achieve the objective of this, simulating it in the Simulink package of Matlab software. By automating the software, we obtained accurate and much more effective results, in contrast to those made by the project manager manually or using software for project management.

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Section: Estimación De Tiempounclassified

“…Esta estimación solo se dará si todo el proceso se desarrolla perfectamente, sin ninguna adversidad. (Farnum & Staton, 1987)…”

Section: Estimación Optimista (A)unclassified

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Modelación Matemática para la estimación de tiempos en un proyecto utilizando MATLAB-Simulink

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“…A study by Farnum and Stanton [16] [19]. This restriction led to various modifications on the classical PERT to accommodate more members of the beta family.…”

Section: Activity Time Distributions In Literaturementioning

confidence: 99%

A Review of Activity Time Distributions in Risk Analysis

Udoumoh¹,

Ebong²

2017

AJOR

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Project Evaluation and Review Technique (PERT) alongside recent modifications is a popular and useful tool in project risk analysis. Over the past seven decades, there have been some modifications in PERT owing to the shift from beta distributed activity times to other activity time distributions. This paper presents a review of activity time distributions in risk analysis as found in literature up to date.

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“…PERT has received a great deal of criticism since its "birth". These critiques can be classified into four classes, as follows: • Critiques of the three-point estimation (Three point estimation cannot be used to define activity distribution without ambiguity) (Clark 1962;Sasieni 1986;Keefer and Bodily 1983;Farnum and Stanton 1987). • Critiques of the proposed activity distribution (Why is Beta assumed for the distribution of the activity duration, instead of other, maybe better distributions?)…”

Section: Foundations and Problems 21 Pert Networkmentioning

confidence: 99%

Sixty years of project planning: history and future

Hajdu

Isaac

2016

Organization, Technology and Management in Construction: An International Journal

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Modern project management owes its reputation to the development of modern scheduling techniques based on the theory of graphs, namely, network scheduling techniques. In 2017, these techniques are celebrating their 60th birthday. This anniversary provides the opportunity to look back at the most important achievements such as non-linear activities and new precedence relations, as well as to take a look into the future. The highlights of this subjective retrospective are the presentation of the latest results and the compilation of those problems that will probably define the priorities for future research. This paper is the extended version of the keynote lecture/ presentation that has been presented at the PBE 2016 Conference (People, Buildings and Environment, Luhačovice, Czech Republic) (Hajdu 2016a).

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Some Results Concerning the Estimation of Beta Distribution Parameters in PERT

Cited by 70 publications

References 3 publications

Modelación Matemática para la estimación de tiempos en un proyecto utilizando MATLAB-Simulink

Modelación Matemática para la estimación de tiempos en un proyecto utilizando MATLAB-Simulink

A Review of Activity Time Distributions in Risk Analysis

Sixty years of project planning: history and future

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