The Part Master File includes, for each item:

The Part Master File for the BOM Web example is shown in Figure A.1. Typical transactional operations required to maintain bills of material can be performed using the transactional macros described in Chapter 4: Bill of Material Postprocessing Macros. Some of these operations are illustrated using this table. You can add a new part using the top table, update the data for existing parts using the bottom table, and delete multiple parts simultaneously. Refer to Chapter 4 for information on the BOM transactional macros.