Part II – (You can read part 1 here) Evolving your BoM strategy, tools, and abilities. “EBoM vs. MBoM” transforms into “EBoM integrates with MBoM.” This integration includes associativity to one another, time saving tools, elimination of error prone manual steps & more.
Imagine eliminating the common disjointed processes, additional time, and error prone manual steps involved in the creation of downstream BoMs from Engineering into Manufacturing, Production and Service management.

Concepts & examples such as Manufacturing Bill of Materials (MBoM) are shown below, all under one system, integrated & associated, and created with a single click. Then they’re easily edited to meet downstream BoM needs.

BoM creation can be streamlined & improved by associatively creating downstream BoMs (S or M or other) and eventually, connecting them to your ERP system. For now, we’ll focus on the first step of this business transformation concept; the creation of the second, or downstream M or SBoM, starting with a simple EBoM example, created in minutes, and easily viewed & tracked.

Who should be involved in this topic at your company? Ideally, your Configuration Manager role should be leading or heavily involved in this process.

The starting point & tool is PTCs Windchill and your willingness to change & improve.

Once your CAD data is ready to check into Windchill, there is an option (check box) to auto-associate the EBoM to a downstream BoM such as an MBoM. It is a 1:1 relationship for starters. Options can branch out from here into many CM (Configuration Management) directions. Such as multi-level BoM management, uses, visualization and more.

Once created, you can manipulate & edit the default 1:1 downstream BoM to your needs; adding bulk items, manufacturing specific sub assemblies, (build throughs) even new service end items. You can also flatten out an EBoM to meet assembly or production needs. BoM items such as adhesive, lubricant, paint or coatings, packaging items, all things that typically are not on an EBoM, can and do belong on the M or SBoM.

If this fits your company’s needs? consider using Windchill’s auto-associate feature.

This article covers a couple examples. If this is not deep enough…here are even more tools to consider. Topics such as creating associated manufacturing instructions, work instructions, work plans and more. Change Management is shown as reference only, it is an optional element of Windchill for another blog.

There are many options to this topic, these are common examples that fit a lot of needs and is considered a starting point.

1stexample shows all BoM & change components all connected in one system vs. manually done in silo fashion, which is industry’s most common method today. These examples are shown in PTCs Windchill reference viewer tool, which ties all related objects into view for easy visibility with just a few clicks.

  1. 1. EBoM structure (highlighted in green) 
  2. 2. Change requests, notices and tasks (highlighted in red) 
  3. 3. MBoM structure (highlighted in blue) with their own, or connected Change Management Requests, Notices & Tasks


Evolving Your BOM Strategy, Tools, and Abilities | EAC Product Development Solutions

2ndexample shows an EBoM, SBoM (Service Kit in this example), with a saleable end item service kit, as well as components for service or manufacturing BoMs. It also shows Changes, these can also be created, edited, routed, approved or rejected, and even include the SBoM if need be. 

Evolving Your BOM Strategy, Tools, and Abilities | EAC Product Development Solutions

Please connect with EAC to learn more, to discover your company’s transformation opportunities with an assessment, maybe see a demo, or attend a webinar. The goal is to help your company transform how you design, manufacture, connect to and service your products.