Editing or Selecting a Failure Mode

You can edit or select a failure mode of a function to be analyzed in a causality relationship of a PRA table of your system. For a reference table, you can only select failure modes in causality relationships.

Before you begin: Select a function in the first cell of a causality relationship in a PRA table. For more information, see Selecting a Function.

To edit a failure mode in a causality relationship, select a failure mode cell.
To associate a failure mode:
- For tables, do one of the following:
  - Select an existing failure mode in the list.
    Note:
    This list proposes the failure modes pointing to the selected function.
    
    A pattern matching search, which is also case-sensitive, is available to narrow down the list of failure modes.
  - Enter a name to create a new failure mode.
    Note:
    If you select Confirm failure mode creation in the widget preferences, the Create Failure Mode for xxx dialog box enables you to:
    
    Enter the failure mode name.
    
    Select a customized type, if any.
    
    For more information, see Customizing Preferences.
  - Drag a failure mode from another widget (for example, Bookmark Editor, Search, …) or from Fallible Reference Editor.
- For reference tables, drag a failure mode from another widget (for example, Bookmark Editor, Search, …) or from Fallible Reference Editor.
The corresponding elements are displayed as follows:
- The failure mode appears in a tile in the cell.

You can now edit a hazardous event of your system.