Settings for a BOM Comparison
Comparison Levels
You can set the levels of detail for a comparison as follows:
Single-level comparison |
Multi-level comparison |
Only items on the top explosion level are compared.
To ensure that the BOM with the application-specific data you require is exploded, enter the BOM usage. |
Items that are assemblies are exploded and compared down to their lowest level. To ensure that the BOM with the application-specific data you require is exploded, enter the Application. The different explosion levels are exploded as for a multi-level BOM. |
Components That Are Used More than Once
A BOM may contain the same component in several different places. Before you start the comparison, you define how you want component quantities for these components to be displayed: summarized or differentiated.
The following fields are displayed for both comparison types:
The following table shows the differences between these two comparison types.
Summarized comparison |
Differentiated comparison |
The individual component quantities are added together to make a total component quantity. |
Each occurrence of the item is shown separately. |
If a component that is used more than once in a BOM has different field values (for example, non-stock item and stock item), no value is shown in the field. |
You can select fields for comparison and display the values on the detail screen. |
You see the difference in total component quantity for the two BOMs. |
You see the individual explosion levels for each item. |
Fields for Differentiated Comparison
The system displays the items in the primary or secondary BOM that match your selection criteria in the comparison result with the following data:
In the Differentiated comparison function, this data describes the item. The data is not automatically compared. In a differentiated comparison, you have to select the data you want to compare by selecting Fields for comparison, such as Quantity, or Item number.
Before you start the comparison, select the fields for comparison for the different object types:
You can save your selection of fields for comparison. The system saves fields you select for your user. The next time you call the differentiated comparison function, these values are preselected.
Selection Criteria for Defining the View
You define selection criteria in the View function in three datasets:
You can compare sub-items either by sub-item number or by installation point.
The converted form of dependencies is compared. Even small differences in the contents of object dependencies lead to the comparison result not equal.