QualityKnowledge

Perform the function analysis

Specify the functions of the system elements in the FMEA structure

During function analysis, you define the functions of each component of the assembly or process for which the FMEA is performed. You also add the requirements and characteristics of the function representations. You can perform the function analysis after you perform the structure analysis of the FMEA.

To perform a function analysis:

Procedure

  1. Add a function representation to a system element representation

  2. Add higher-level or lower-level functions to the function representation

  3. Add requirements to the function representation

  4. Add characteristics to the function representation

Add a function representation to a system element representation

Procedure

  1. Open the FMEA.

  2. Select the system element and add a function by one of the following methods:

Choose More Commands

New

Function. From the Structure Analysis tab, click Add and select Function. In the net view, right-click the tile and select Function.

  1. In the Create panel, do one of the following:

Click Search to search for an existing function element.

Click New and specify the required details to create a new function.

Note If you select the Create and link its master data check box, the function is created as a specification at the highest level in the Quality Master Data library.

Add higher-level or lower-level functions to the function representation

Procedure

  1. Open the FMEA.

  2. Select the function.

  3. To add a function at the level immediately above the selected function, you can do one of the following:

Choose More Commands

New Next Higher Level Function. From the Function Analysis tab, click Add and select Next Higher Level Function. In the net view, right-click the tile and select Next Higher Level Function.

  1. In the Add panel, do one of the following:

Click New to create a new function. Note If Teamcenter Copilot Quality is available, you can prompt it to create suggestions for your quality data.

Click Search to search for an existing function and then specify the search scope:

Select the current FMEA check box to search within the current FMEA.

Select the Function Library check box to search the Quality Master Data library.

Select both check boxes to search both locations.

Note In the FMEA tree structure, you can view the external (local) functions of an FMEA under External Functions.

  1. Click Add.

The function is added to the FMEA.

  1. To add a function at the level immediately below the selected function, you can do one of the following and perform steps 5 and 6.

Choose More Commands

New Next Lower Level Function. From the Function Analysis, click Add and select Next Lower Level Function. In the net view, right-click the tile and select Next Lower Level Function.

Add requirements to the function representation

Procedure

  1. Open the function from the FMEA object in the tree view.

This is the object you created when you added a function to a system element.

  1. To add the requirement, click the Requirements tab and click Add .

  2. In the Add panel, do one of the following to add a requirement.

Click New.

Click Palette

Click Search.

Click Classification.

Note You can also copy an object and add it as a requirement to the function.

  1. (Optional) To remove the object, select it and click Remove .

Add characteristics to the function representation

For each manufacturing operation, you can optionally add the characteristics that define what is being measured on the shop floor. For this, you add an Inspection Definition that contains the required Quality Characteristic.

You can also add characteristics such as diameter, length, surface roughness, and so on, which are important for the production of prototypes and pre-series parts. These characteristics are required for prototype control plans and pre-series control plans.

Procedure

  1. Open the function from the FMEA object in the tree view.

This is the object you created when you added a function to a system element.

  1. To add the characteristic, click the Characteristics tab and under Inspection Definition, click Add .

Note You can also copy an inspection definition and add it as a characteristic to the function .

  1. In the Add Inspection Definition panel, under Properties, specify the Name and Description .

  2. In the Add Characteristic section, click Add To .

  3. To add a Quality Characteristic including its criteria, do the following:

From the Characteristic Group Type list displayed, select the required Characteristic Group.

Select the required Quality Characteristic from the available Quality Characteristics of the group, and click Attach.

(Optional) To replace the Quality Characteristic that you have added, click Replace in the Add Characteristic section.

  1. Click Add.

  2. (Optional) To remove the object, select it and click Remove .

What to do next

The FMEA object to which the function is attached is displayed in the Context field in the Overview tab. You can return to the FMEA object and add more functions to the structure if required.

After adding the required functions, requirements, and characteristics, and ensuring that they are appropriately allocated to the system elements, you can perform a failure analysis of the FMEA.

Source: https://docs.sw.siemens.com/en-US/doc/282219420/PL20251212545240207.fmea/xid1961761 · retrieved 2026-07-11