Fault Tree Analysis (FTA)

ITIL Terminology - E to G

Effectiveness

A measure of whether the objectives of a process, service or activity have been achieved. An effective process or activity is one that achieves its agreed objectives. 

Efficiency

A measure of whether the right amount of resource has been used to deliver a process, service or activity. An efficient process achieves its objectives with the minimum amount of time, money, people or other resources. See also key performance indicator.

Six Sigma Tools - Fault Tree Analysis

The Fault Tree Analysis (FTA) was first launched by Bell Laboratories and is likely one of the most generally used strategies in system reliability, maintainability and security analysis. It's a deductive process used to find out the varied combos of hardware and software program failures and human errors that would trigger undesired occasions (known as prime occasions) on the system stage.

fault tree analysis

The deductive analysis begins with a basic conclusion, then makes an attempt to find out the precise causes of the conclusion by developing a logic diagram known as a fault tree. That is also referred to as taking a top-down method.

The primary goal of the fault tree analysis is to assist establish potential causes of system failures earlier than the failures happen. It may also be used to judge the likelihood of the highest occasion utilizing analytical or statistical strategies. These calculations contain system quantitative reliability and maintainability data, corresponding to failure chance, failure fee, and restore charge. After finishing an FTA, you'll be able to focus your efforts on bettering system security and reliability.

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