Fault Tree Analysis in Projects

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'''Abstract:'''
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'''Fault tree analysis (FTA)''' is defined by the [[International Electrotechnical Commission|International Electrotechnical Commission (IEC)]] and the [[International Organization for Standardization|International Organization for Standardization (ISO)]] as a "technique for identifying and analysing factors that can contribute to a specified undesired event".[citation]
  
'''Fault Tree Analysis (FTA)''' is a tool to analyse the risks that are associated with various projects. The goal is to identify different risks that can occur in a given project. The Fault Tree consists of a top event, which then branches out to lower levels that will lead up to the upper events. The Fault Tree is visualized by "gates", that are derived from Boolean logic symbols.
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FTA has its wide range of application in many fields of engineering such as [[systems engineering]], [[reliability engineering]], and [[safety engineering]]. It also serves as an applicable tool for identifying the causes of undesired events in projects.[citation] Undesired events in projects can for instance be exceeding the budget, time delays, lack of team synergy, or any other events that have a negative effect on the project. This is referred to as the top event.
  
In risk management and project management, FTA has served as a great tool for assessing the different problems that might occur during the project process. Some academics have also applied the FTA to the general aspect of projects themselves to identify what causes a project to be delayed (see "Fault Tree Analysis for Investigation on the Causes of Project Problems" by Silvianita). By applying theories such as Minimal Cut Set, the Fault Tree Analysis will be able to reveal some high probability risks to projects that might otherwise have gone unnoticed which could cause severe problems later in the project.
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The purpose of FTA is to give both a qualitative and quantitative analysis of the factors that can trigger the undesired top event. A qualitative analysis shows via a graphical representation of the tree the top event that is to be analysed, along with the pathway of all the intermediate and basic events that lead up to the top event. A quantitative analysis shows the probability of a top event being triggered by the input probabilities of the basic events that lead up to the undesired event. The quantitative analysis is calculated through [[Boolean algebra]].[citation]
  
The FTA can have big applications in project management and also deals in many other categories, such as risk management, uncertainty, and systems engineering.
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==Methodology==
  
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===Symbols===
  
==Big idea==
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===Boolean algebra===
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===Analysis===
  
 
==Application==
 
==Application==
  
==Limitations==
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===Example===
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==Strengths and weaknesses==
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===Limitations===
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==See also==
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==Further reading==
  
==Annotated bibliography==
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==Bibliography==

Revision as of 03:44, 15 September 2016

Fault tree analysis (FTA) is defined by the International Electrotechnical Commission (IEC) and the International Organization for Standardization (ISO) as a "technique for identifying and analysing factors that can contribute to a specified undesired event".[citation]

FTA has its wide range of application in many fields of engineering such as systems engineering, reliability engineering, and safety engineering. It also serves as an applicable tool for identifying the causes of undesired events in projects.[citation] Undesired events in projects can for instance be exceeding the budget, time delays, lack of team synergy, or any other events that have a negative effect on the project. This is referred to as the top event.

The purpose of FTA is to give both a qualitative and quantitative analysis of the factors that can trigger the undesired top event. A qualitative analysis shows via a graphical representation of the tree the top event that is to be analysed, along with the pathway of all the intermediate and basic events that lead up to the top event. A quantitative analysis shows the probability of a top event being triggered by the input probabilities of the basic events that lead up to the undesired event. The quantitative analysis is calculated through Boolean algebra.[citation]

Contents

Methodology

Symbols

Boolean algebra

Analysis

Application

Example

Strengths and weaknesses

Limitations

See also

Further reading

Bibliography

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