Compare the content in structures

Compare the content in structures You compare similar engineering BOM data, such as two engineering BOMs, to view the differences between them. Your administrator sets up the properties that can be compared. Procedure Perform the action listed in the following table depending on your task: Task Action To compare two parts Select two parts. Click Compare > Compare Structures . To compare two engineering BOMs Select two engineering BOMs from one of the following, and then click More Commands > View > Compare Structures : Search results Change History table on the History tab Favorites To compare two revisions of a part on the History tab In the Revision History section on the History tab, select two revisions of a part and click More Commands > View > Compare Structures . In the Compare panel, the parts that are unique to both structures are displayed with color bars under Results. This comparison is performed with the default comparison options. (Optional) Change the comparison level: Specify the comparison level by selecting one of the following from Options: Comparison option Description All Levels Compares the elements at every level in the two structures. If this option is selected for very large structures, performance may be adversely affected. All Levels Below Selected Compares all levels below the selected level in the two structures. Components Only Compares only the parts that are at the lowest level (components). Current Level Compares only the parts that are immediate children of the selections in the two structures. This is the default level of comparison. Linked Assemblies or Components Compares two structures by using accountability check. This comparison level is displayed only if Multi-Structure Foundation is available in your Teamcenter environment. Accountability check is a verification mechanism to check if all the parts in one structure have equivalent parts in the other structure. You can define your own properties for equivalence. Specify what you want to display in the comparison results by selecting one or more of the following options from Options > Display: Comparison option Description Matched Displays the parts that are a match in both structures. Different Displays the parts that differ across the two structures. Multiple Matches Displays the different numbers of occurrences of the same part in the comparison as a difference. Unique in Left View Displays the parts that are only listed in the structure displayed on the left. Unique in Right View Displays the parts that are only listed in the structure displayed on the right. For Linked Assemblies or Components, select the Dynamic Equivalence check box. In some cases, the occurrences that are slightly different in the two structures might not be reported as equivalent. The dynamic equivalence check reports such occurrences. This check box is displayed only if Multi-Structure Foundation is available in your Teamcenter environment. (Optional) Select the Run in Background check box to perform the comparison in the background. This is recommended when you compare all levels or only the components in large structures. You can view the results later by selecting the relevant notification from Alerts. Note The Run in Background check box is not displayed when you select the comparison level as Current Level. (Optional) Select the Generate Report check box to generate the comparison report. Click Compare. The comparison results are listed under Results. Clicking a part in the list highlights that part in the structure. If your administrator has configured it for you, the parent elements of the structures are also included in the comparison. Comparison results are retained for a specific period. If a comparison result is older than the retention period or if a more recent result exists, the old result is automatically deleted by the system. If you selected the Generate Report check box, the comparison report is generated in Excel. If you have the permissions to edit the target engineering BOM, the report is attached to it. You can click the Attachments tab of the target engineering BOM to download the report. If you do not have permissions to edit the target engineering BOM, the report is saved in the Newstuff folder. The file name for the comparison report is in the format Compare_Report_AND_YYYYMMDD_HH_MM_SS, where Source_ID is the ID of the first engineering BOM that you want to compare and Target_ID is the ID of the engineering BOM with which you want to compare the first engineering BOM. You can also click to understand the location of the comparison report if the BOMs are compared in the background. Tip In case you closed the Compare panel and want to perform any further comparison, click Compare on the task bar to view the Compare panel. You can select some other parts either from the same structure or one each from the two structures displayed side-by-side for further comparison. To reconcile the differences found in the structure, you can drag a part from one structure to another and compare them again. Engineering BOM Management ─ Usage, 2606 Unpublished work. © 2026 Siemens