First, the supply chain or procurement personnel evaluate the ability to purchase the components by reviewing the following
fields on the BOM and through part research:
f
Part Quantity
f
Availability
f
Lead Time
f
Cost
f
Distributor Information
f
Manufacturer Information
f
Part Status
f
Compliance
After review, the BOM is either accepted or rejected based on the purchasing criteria of the project or company. If rejected,
feedback is provided on the necessary changes, leaving the design team scrambling to rework the design and resubmit the
BOM. This cycle of rejection, revision, and resubmission can result in significant losses, not only in production time but also in
costly workforce hours.
Why does this happen so often, and more importantly, how can it be avoided? To determine this, we need to look at the first
step in the BOM creation process, part selection.
Submit BOM
for approval
BOM reviewed
by purchasing
BOM rejected
Feedback
provided on
the required
changes
Make design
and part
modifications
After the BOM is completed, it must be submitted for approval and purchasing. At this stage, let's
consider a scenario that closely mirrors the experiences of many engineers.
Bill Of Materials - Submit, Reject, Repeat
3 www.cadence.com
