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Wednesday, 22 August 2018 02:26

Add-In for Fault Tree Analysis

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This FTA Add-In enables to write Fault Tree Analysis (FTA) diagram in Enterprise Architect. It offers some userful features like auto-layout.


- Installation


Please unzip the following file, then right-click EAAddinSetup.bat file and select 'Run As Administrator'. If installation is succeeded, you can find 'FTA' menu item under Extension menu of Enterprise Architect.

This add-in works on Enterprise Architect version 13.0 or later.



- How to create FTA


Just the same as creating other type of diagrams. At first, create top-level intermediate event and then use the QuickLinker to add other events or gates.

You can set basic properties by double-clicking target object.


- Add-In features

This Add-In has two features, auto-layout and calculate probability.

Select root (target) object and call features by context menu, under 'Specialize' | 'FTA'.


Read 13296 times Last modified on Thursday, 15 April 2021 22:29

Takeshi Kouno

Sparx Systems Japan (Chief Executive Officer)
Sparx Systems Japan offers regional support and sales in Japan, and develops RaQuest and some Add-ins for Enterprise Architect. For detail, visit https://www.sparxsystems.jp/en/ .



  • Comment Link tkouno Friday, 15 May 2020 00:54 posted by tkouno

    Hi Alan,

    Thank you for your comment. I am sorry to reply late since I did not realize your comment. (There is no notification when someone drops a comment to my post.)
    I am glad to hear that this add-in works fine.

  • Comment Link Alan Cohen Monday, 27 January 2020 19:33 posted by Alan Cohen

    Hi Takeshi,
    I just tried to use your add-in again -- I installed it on v15, and it's now obvious how to use the plug-in. For some reason, when i installed it previously it was not showing up in my EA, or i was not being smart in finding it. Thank you for this plug-in, I think it could be very useful.

  • Comment Link Jan Reich Sunday, 24 November 2019 13:51 posted by Jan Reich

    Hi Takeshi,

    thank you for providing the add-in for Fault Tree Analysis. In case someone is interested in a more sophisticated Fault Tree Modeling and Analysis solution (including automation support) in EA, you may also find our safety engineering tools for EA "safeTbox" interesting. It is free and offers many features that you can review at https://www.safetbox.de/. For instance, safety-oriented architecture modeling, hazard and risk analysis, safety analysis with (Component) Fault Trees and safety argumentation with the Goal Structuring Notation (GSN).

    Best regards
    Jan Reich from Fraunhofer IESE

  • Comment Link tkouno Friday, 09 November 2018 08:47 posted by tkouno

    Hi Alan,

    I am sorry that I have not realized your comment.

    Unfortunately, I do not have any example. Following page is description of this add-in (but in Japanese) , it may helps you with Google translator.

  • Comment Link Alan Cohen Friday, 31 August 2018 21:05 posted by Alan Cohen

    Thank you for writing this add-in, it could be very useful to me. I'm familiar with the FTA technique, but not with using this add-in.Can you provide an example of it's use within EA?

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