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Perform a root cause analysis > Perform a root cause analysis by using the Ishikawa methodology

Delete an Ishikawa and its cause groups, causes or child causes

While performing your analysis, you might find that an Ishikawa, cause group, cause, or child cause is not relevant to the Problem Solving process. In such a case, you can delete it.

Procedure

  1. From Launcher, click Changes .

If this option is unavailable, search for it. You can pin it from the search results for future access.

  1. From the CHANGES folder, select and open the Problem Solving process that you want to edit.

  2. Click the Root Cause Analysis work mode.

  3. In the left pane of the Root Cause Analysis work mode, select and expand the defect that contains the Ishikawa, cause group, cause, or child cause to be deleted.

  4. To delete a cause or child cause in the Ishikawa, select it in the left pane, and do the following:

Choose More Commands > Edit  > Delete .

If you are in the Methodology tab in the right pane, click Delete in the work area toolbar.

In the confirmation message, click Delete.

The existing causes and child causes are automatically rearranged in the Ishikawa. Note The associated quality actions and attachments are also deleted. If you have linked a failure code from the failure catalog, the link is deleted.

  1. To delete a cause group in the Ishikawa, select the Ishikawa in the left pane and click the Methodology tab in the right pane. Do the following:

In the Methodology tab, select the problem description defect.

Choose More Commands > Manage > Cause group .

In the Cause Group box, select the required cause group and click Remove .

Caution You cannot delete a cause group if it has associated causes.

Click Save.

  1. To delete an Ishikawa, select the Ishikawa, and do the following:

Choose More Commands > Edit  > Delete .

If you are in the Methodology tab in the right pane, click Delete in the work area toolbar.

In the confirmation message, click Delete.

The Ishikawa and its associated cause groups are deleted. Caution You cannot delete an Ishikawa if it has associated causes.

Source: https://docs.sw.siemens.com/en-US/doc/282219420/PL20251212545240207.problem_solving/xid1846002 · retrieved 2026-07-11