I have never seen the 2 BOM approach, in the various MRP and ERP systems
I have been exposed to we just assigned the parts to different work
cells according to SMT, pre-wave, or post-wave assembly and the system
automatically created the proper pick lists for each assigned point.
For our work instructions the BOM is entered into our system and again
the parts are assigned to the work cell, then they appear at the point
they are installed.

Keith S. Calhoun
Manufacturing Engineering Manager
SoPark Corporation
3300 South Park Avenue
Buffalo, New York 14218
Phone: 716-822-0434 ext. 237
Fax: 716-822-5062
Email: [log in to unmask]

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Smith, Rick
Sent: Tuesday, November 30, 2010 10:30 AM
To: [log in to unmask]
Subject: [TN] Separate BOM's for Same Assembly

Hi Folks,

Engineering currently produces two separate BOM's for a single board
assembly, 1 for SMD's and the other for PTH parts which are subsequently
entered into the ERP system by Doc Control. Without going into a lot of
detail I understand the reasons for the separate BOM's are related to
production logistics, routings and cost.

I am told this is typical in the industry for OEM's and would like to
either corroborate or debunk this with your responses. I am trying to
determine if the 2 BOM system is necessitated by ERP limitations or the
result of a misguided approach to process development.

Does anyone use the two BOM approach for a single board assembly?

Thanks!

Regards,
Rick


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