MyPage is a personalized page based on your interests.The page is customized to help you to find content that matters you the most.


I'm not curious

Event Tree Analysis - The Risk Assessment Application Tool

Published on 20 March 18
0
0
Event tree analysis is applicable to risk assessment and safety system engineering. It is used to determining the success paths and providing solutions to avoid dangers and accidents.

What is Event Tree Analysis?

Originating from decision tree analysis, event tree analysis becomes an accident-cognition method of deducing possibilities and outcomes in a chronological order. This approach uses a tree diagram called "event tree" to describe the logical relationship between probable accidents and potential reasons. Through the qualitative and quantitative analysis of the event tree, users can find the main reasons of accidents and provide reliable solutions so as to reach the purpose of speculating and preventing accidents.
Event Tree Analysis - The Risk Assessment Application Tool - Image 1

Qualitative Analysis of Event Tree

Qualitative analysis process occurs along with designing process. For this reason, before drawing the event tree, you should analyze the possibility of each process and probable status of each path in accordance with characteristics and objectives of the event. After designing the event tree, you need to find types of an accident occurring path and solutions to accident prevention.
Event Tree Analysis - The Risk Assessment Application Tool - Image 2
  • Seek chains of the accident
    Commonly, there are many paths leading to system accident which makes chains of the accident. The more the successful chains are, the safer the system will be. On the contrary, fewer chains will cause the danger to the system. In order to avoid accidents, you should guarantee that all success chains are found.
  • Find solutions to accident prevention
    In order to avoid accidents, you should guarantee all success chains have solutions echoing to prevent the accidents. Final path to success instructs us to take measures of the accident prevention.

Quantitative Analysis of Event Tree

Quantitative analysis of event tree, based on the occurrence of an event, determines the accident occurring path by calculating each path of occurrence probability, comparing values of probabilities and sequencing through the possibility of an accident. Basic terms are shown as follow.
  • The probability of each path
    The probability of each path equals products of an event occurring probabilities since initial event.
  • The probability of an accident occurring
    The probability of accident occurring equals the sum of the probabilities of each path. Sometimes it could not be calculated because of complex conditions.
  • Accident prevention
    With clear and logical descriptions of analyzing accident forming processes, event tree offers a strong basis for accident prevention.
Event Tree Analysis - The Risk Assessment Application Tool - Image 3
The analysis of the event tree provides a clear basis for the development of the incident, and it provides a strong basis for the design of the accident prevention plan and the development of the accident prevention measures.
According to event tree analysis, the final accident is the result of a set of hazards. If ending the development process in time, the accidents might be avoided. Thus, in each stage of accident occurrence, steps should be taken to control the possibility, thus decreasing the occurrence probability and lead to a safe development path.
Now you may have a better understanding of the event tree analysis. Try drawing with Edraw diagramming software, you will find it easy to use without drawing skills required.
Event Tree Analysis - The Risk Assessment Application Tool - Image 4
Event tree analysis is applicable to risk assessment and safety system engineering. It is used to determining the success paths and providing solutions to avoid dangers and accidents.

What is Event Tree Analysis?

Originating from decision tree analysis, event tree analysis becomes an accident-cognition method of deducing possibilities and outcomes in a chronological order. This approach uses a tree diagram called "event tree" to describe the logical relationship between probable accidents and potential reasons. Through the qualitative and quantitative analysis of the event tree, users can find the main reasons of accidents and provide reliable solutions so as to reach the purpose of speculating and preventing accidents.

Event Tree Analysis - The Risk Assessment Application Tool - Image 1

Qualitative Analysis of Event Tree

Qualitative analysis process occurs along with designing process. For this reason, before drawing the event tree, you should analyze the possibility of each process and probable status of each path in accordance with characteristics and objectives of the event. After designing the event tree, you need to find types of an accident occurring path and solutions to accident prevention.

Event Tree Analysis - The Risk Assessment Application Tool - Image 2

  • Seek chains of the accident
    Commonly, there are many paths leading to system accident which makes chains of the accident. The more the successful chains are, the safer the system will be. On the contrary, fewer chains will cause the danger to the system. In order to avoid accidents, you should guarantee that all success chains are found.
  • Find solutions to accident prevention
    In order to avoid accidents, you should guarantee all success chains have solutions echoing to prevent the accidents. Final path to success instructs us to take measures of the accident prevention.


Quantitative Analysis of Event Tree

Quantitative analysis of event tree, based on the occurrence of an event, determines the accident occurring path by calculating each path of occurrence probability, comparing values of probabilities and sequencing through the possibility of an accident. Basic terms are shown as follow.

  • The probability of each path
    The probability of each path equals products of an event occurring probabilities since initial event.
  • The probability of an accident occurring
    The probability of accident occurring equals the sum of the probabilities of each path. Sometimes it could not be calculated because of complex conditions.
  • Accident prevention
    With clear and logical descriptions of analyzing accident forming processes, event tree offers a strong basis for accident prevention.


Event Tree Analysis - The Risk Assessment Application Tool - Image 3

The analysis of the event tree provides a clear basis for the development of the incident, and it provides a strong basis for the design of the accident prevention plan and the development of the accident prevention measures.

According to event tree analysis, the final accident is the result of a set of hazards. If ending the development process in time, the accidents might be avoided. Thus, in each stage of accident occurrence, steps should be taken to control the possibility, thus decreasing the occurrence probability and lead to a safe development path.

Now you may have a better understanding of the event tree analysis. Try drawing with Edraw diagramming software, you will find it easy to use without drawing skills required.

Event Tree Analysis - The Risk Assessment Application Tool - Image 4

This blog is listed under IT Strategy & Management and Project & Service Management Community

Related Posts:
Post a Comment

Please notify me the replies via email.

Important:
  • We hope the conversations that take place on MyTechLogy.com will be constructive and thought-provoking.
  • To ensure the quality of the discussion, our moderators may review/edit the comments for clarity and relevance.
  • Comments that are promotional, mean-spirited, or off-topic may be deleted per the moderators' judgment.
You may also be interested in
 
Awards & Accolades for MyTechLogy
Winner of
REDHERRING
Top 100 Asia
Finalist at SiTF Awards 2014 under the category Best Social & Community Product
Finalist at HR Vendor of the Year 2015 Awards under the category Best Learning Management System
Finalist at HR Vendor of the Year 2015 Awards under the category Best Talent Management Software
Hidden Image Url