The First Live Demo of OpenBOM Multi-level Revision Support 

Oleg Shilovitsky
Oleg Shilovitsky
10 March, 2020 | 2 min for reading
The First Live Demo of OpenBOM Multi-level Revision Support 

The March 2020 release of OpenBOM introduces two new and exciting features, 1) Multi-Level Revisions and, 2) OpenBOM storage.  Both are designed to take your BOMs to the next level allowing you to track exactly which revision of a sub-assembly BOM is present in a particular top-level assembly BOM and to enable reference file storage without the need for sharing through a 3rd party cloud application.

OpenBOM has had the ability to Save and View a SIngle Level BOM in a particular Revision for quite some time.  This release extends the ability to “View” a Multi-Level BOM with the sub-levels at their appropriate revisions.  So exactly what does that mean” It means, if SubAssy is at Revision 1 and you save it’s upper level assy (TLA) as Revision 2, when you open TLA in Rev 2 you will “see” SubAssy at Revision 1.  

This is a big deal.  It lets you answer the question “What Revision of SubAssy is used in Revision 3 of TLA?”

The schema below can give you an idea of the OpenBOM revision mechanism. Besides keeping a history of all changes, each assembly Part Number is associated with the full list of immutable snapshots representing “revision” states of the BOM. These immutable objects can be individually connected in a graph of relationships. As a result, OpenBOM keeps a full graph of parent-child relationships between assemblies, their revisions, and history. 

When the user is saving a new revision for each assembly, OpenBOM is connecting their sub-levels with the latest available revision of sub-assemblies. 

This mechanism allows you to create a multi-level structure reflecting revisions of assemblies (BOMs). 

The following video gives you an idea of how it can work. 

Conclusion 

This is the first demo of the OpenBOM multi-level revision mechanism. It is a big step forward allowing OpenBOM to go beyond interchangeable revision management to models supporting revision relationships. Such models are extremely important in different product development scenarios such as engineering to order and contract manufacturings. 

More demos and examples will be coming. Also… shhh… the change management mechanism will be coming soon. 

Check what OpenBOM can do today subscribing to OpenBOM here or request a trial version. 

Best, Oleg @ openbom dot com.

Let’s get to know each other better. If you live in the Greater Boston area, I invite you for a coffee together (coffee is on me). If not nearby, let’s have a virtual coffee session — I will figure out how to send you a real coffee.

Want to learn more about PLM? Check out my Beyond PLM blog and PLM Book website

Read OpenBOM customer reviews on G2 Crowd to learn what customers are saying about OpenBOM. 

Related Posts

Also on OpenBOM

4 6
5 February, 2026

Getting started with engineering software should feel like starting work, not like starting a procurement process. Yet many teams still...

4 February, 2026

Most product teams collaborate all the time. Engineers work in CAD systems and exchange files. BOMs are exported to Excel...

3 February, 2026

When people talk about inventory management or purchase orders, the conversation usually starts in accounting or ERP systems. That is...

2 February, 2026

This is the first article in a new series called “OpenBOM: Getting Started 2026.”  The idea behind this series is...

30 January, 2026

One of the things that has always bothered me about PLM and PDM software is how hard it is to...

29 January, 2026

Across the manufacturing industry, digital transformation initiatives often begin with ambitious investments in digital technologies. Sensors are installed, dashboards are...

28 January, 2026

Managing a bill of materials for a SolidWorks sheet metal design is very different from managing a standard mechanical part....

27 January, 2026

Bill of materials cost analysis is a foundational practice in modern manufacturing operations. Without a structured approach to BOM cost...

24 January, 2026

In a recent article, Why ECOs Need a Workspace: Rethinking the ECO for Agentic Change, I focused on a fundamental...

To the top