From the category archives:

Products

Multiple dimensions of BOM complexity

by Oleg on October 15, 2014 · 9 comments

complex-bom-old-fashion

Bill of Material topic is getting more attention these days. No surprise. BOM is a center of universe in manufacturing (and not only) world. People can disagree about terminology applied to BOM management. Depends on a specific domain people can call it part list, specification, formula. But at the same time, everybody speak about the same BOM. Actually, not always the same BOM. I guess you’ve heard about variation of Bill of Materials – eBOM, mBOM, xBOM, etc. The amount of abbreviations in BOM is growing and often can cause confusion. So, I decided to put some lights on that in my post today.

The importance of BOM management is growing as well as tension around who owns bill of material. Historically, people in different departments disagree about the way they manage bill of materials. As a result of that, departments are splitting and cloning bill of materials to get control and  managing it in different systems. It leads to the need to synchronize and copy BOMs together with changes. The tension around BOM management is growing. Last year, I posted some of my thoughts in the post – Will PLM manage enterprise BOM? The main point in this article was around complexity of BOM management and integration between different systems and disciplines.

It looks like BOM will become the next place some of PLM vendors are going to innovate… and battle. My attention was caught by provocative ENGINEERING.COM article – The Power of Zero – Dassault’s ENOVIA chief talks about the ”Zero Error BOM”. Read the article and draw your opinion. I captured the following passage:

The “war” has generally been about linking product development with shop floor IT and the BOM certainly plays a key role in this. Right now there are four primary participants on the battlefield: Siemens, SAP, GE/PTC and IBM.

Article is emphasizing the complexity of “universal BOM” solution and potential advantages of winning BOM battle:

It’s not a simple job to manage a BOM. What might appear as ”a list of parts needed to build a product” is today a complex reality of multiple levels, diversified disciplines and BOMs contains information about structures, electronics, integrated software, manufacturing methodology and the way products are maintained and even disposed of. There are many sources of error and mistakes can be very costly.

If Dassault’s “zero error BOM” can become a reality, it’s a huge step forward and would, according to analyst Marc Halpern of Gartner, ”have the potential to realize the ’dream’ of the universal BOM”. But as Kalambi says: ”This is about to embark on a journey; once on ’the road’ the benefits of 3DEXPERIENCE and V6 will increase productivity dramatically”.

I found myself thinking quite a bit about complexity of BOM today and, as a result, came to the following diagram showing 3 main dimensions of BOM complexity: Disciplines, Lifecycle, Changes.

multiple-dimensions-of-bom-complexity-v2

1- Multiple disciplines. The complexity of product is growing these days. Even for very simple products it goes beyond just mechanical and electromechanical design. It includes electronic, software and goes to services and deliveries. Engineers are using multiple tools to create design of products in each discipline. To combine everything together is a very challenging task.

2- Lifecycle. Design represents only one phase of product development. It must be manufactured, shipped, supported and (after all) re-furbished or destroyed. All these processes are going in parallel and requires sophisticated interplay in data and activities. How to connect requirements with design, plan and optimize manufacturing and run support services? This is only a short list of tasks that requires BOM orchestration.

3- Changes (ECO/ECN…). Nothing is static in this world. People are making mistakes. Communication failures happen. Suppliers are going out of business. All these events generate changes that must be applied into different stages of product development – design, manufacturing, services.

What is my conclusion? Bill of Material management reflects one of the most complex disciplines in product development and manufacturing these days. The time when companies managed BOM on the shop floor corkboards are gone. Future BOM management systems will have to be much more sophisticated, integrated and to support multiple dimensions of BOM complexity. Just my thoughts…

Best, Oleg

[update 16-Oct-2014]. The BOM complexity diagram was updated following comments about ECR-ECO-ECN

Share

9 comments

MBOM collaboration and cost of change

by Oleg on October 9, 2014 · 2 comments

mbom-collaboration

The only thing that is constant is change. This is very much applies to everything we do around BOM. Engineering and manufacturing eco-system are full of jokes about engineering changes. You maybe heard about renaming “engineering change order” into “engineering mistake order” as well as the correlation between number of engineers and number of ECOs in a company. However, the reality – change orders are one of the central elements of engineering and manufacturing life. And it is primarily related to bill of materials. Once defined, we keep changing BOMs through the lifecycle of the product. ECOs are helping us to do so.

In my yesterday post (Manufacturing BOM dilemma), I discussed the complexity of manufacturing BOM. Fundamentally, MBOM is reflecting manufacturing process, which is by itself defined by both – product information coming from engineering department and by part and other related information coming from manufacturing systems (MRP / ERP). The collaboration between these two systems is never easy. This is one of the reasons why MBOM management process is struggle to find the right place in many companies.

One of the suggestions made in comments was to use PLM system as BOM manager and run ECO/ECR processes each time we need to make a change in bill of material. Such process will insure ERP will be always updated with the last information about BOM. My initial thinking – this is very straightforward way to manage it and I’ve seen it in many companies. On second thought, maybe there is a better way to manage that.

As I mentioned before, changes to the bill of material are a controversial topic. My hunch every company should have a policy how to manage BOM changes. From my experience I can classify three major type of changes to bill of materials: 1/mistakes; 2/materials and/or parts changes; 3/arbitrary changes (liabilities, etc.). In many situations, BOM changes can lead to significant cost related to material scrap, additional material planning, etc. On the other side, every change related to materials, process optimization and manufacturability should be synchronized back into PLM system. So, maybe, ECO/ECR is not a right way for engineering/manufacturing collaboration these days?

The life was good when engineers were able to through BOM over the wall of manufacturing department and finish their job. This is not a reality we live in today. Engineering and manufacturing should maintain a very close relationships by developing and optimizing manufacturing processes. Sometimes, the solution is purely manufacturing. However, very often, redesign or additional level of product engineering optimization required to reduce product cost or bring product to market faster. Maybe it is a time for both engineering and manufacturing department to develop new practices how to collaborate on BOM? Abandoning old fashion ECR/ECO processes for engineering/manufacturing collaboration can be a first step into this change.

What is my conclusion? Engineering and manufacturing process planning are tightly coupled these days. In many situations both product development and engineering planning must go in parallel to achieve desired level of optimization. It requires new type of processes and software enabling new level of BOM collaboration. Old fashion ECR/ECO method may not work. Just my thoughts…

Best, Oleg

Share

2 comments

Manufacturing BOM dilemma

by Oleg on October 8, 2014 · 9 comments

mbom-dilemma

Manufacturing process optimization is one of the biggest challenges in product development these days. Companies are looking how to low the cost, optimize manufacturing process for speed and to deliver large variety of product configurations. The demand for these improvements is very high. The time when engineering were throwing design”over the wall of engineering“ is over. Engineering and manufacturing people should work together to optimize the way product is designed and manufactured at the same time. Which, in my view, leads to one of the most critical element of this process – Manufacturing BOM (MBOM).

In one of my earlier posts, I addressed the challenges PLM systems has to manage BOM. PLM vendors are recognizing the importance of manufacturing solutions. However, it is hard to deliver MBOM in PLM. It related to CAD roots of PLM products, historical disconnect of engineers from manufacturing processes, complexity of synchronization between multiple BOMs and problems of integrating with ERP systems. Vendors are encouraging companies to use PLM technologies to manage MBOM and to push right product MBOM information to ERP for execution. The advantage of that is the ability of PLM to deliver accurate product information derived from design and engineering BOM.

However, there is another side in this story- manufacturing planning. Fundamentally, MBOM is created by manufacturing engineers and it reflects the way product is built. It usually structured to reflect manufacturing assembly operations, workstations, ordering process, etc. In other words, MBOM is a reflection of manufacturing process based on information from product design. Company can decide to improve manufacturing process for existing product. It means most probably no changes for CAD design and EBOM, but will require to create a new version of MBOM.

As a result of that, MBOM has dual dependence of both correct engineering information from PLM system and manufacturing constraints and part information management by ERP. Both are absolutely important. By placing MBOM in PLM system company can create a complexity of manufacturing process planning in ERP. At the same time, ERP system (more specifically manufacturing modules) are not providing dedicated BOM planning tools capable to handle information from EBOM and MBOM simultaneously.

What is my conclusion? Manufacturing BOM is stuck between a rock and a hard places. It must reflect manufacturing process and stay connected to both PLM and ERP environment. It creates a high level of complexity for existing technologies and tools. To create a cohesive environment to manage MBOM is tricky and usually requires significant services and customization. Just my thoughts…

Best, Oleg

Share

9 comments

Part management is stuck between PLM and ERP

September 11, 2014

Few days ago, the discussion about PLM revenue model took me into part management route. This is not entirely related to revenue and business models, but my readers mentioned part cost reduction as one of the most visible ways to present PLM ROI. I have to agree, to manage parts is a critical element of […]

Share
Read the full article →

Why now is the right time to reinvent PDM?

August 15, 2014

Product Data Management (PDM) isn’t a new domain. The first PDM systems were invented 20-30 years ago with a simple objective – to manage product data. The scope of PDM was heavily debated and included design, engineering BOMs, ECO and even supply chain. However, the most widely accepted role of PDM is to manage CAD […]

Share
Read the full article →

Design Collaboration and Google+ Lessons

May 14, 2014

Recent management changes in Google+ attracted lots of conversations about social products experience as well as speculations about Google+ social future. It is also made a reflection on how “social theme” will be developed in enterprise companies. In the past few years we’ve seen few examples of social products for enterprise – eg. ExoPlatform, Jive, SAP […]

Share
Read the full article →

PLM Cloud Customization and Online Code Editors

May 7, 2014

One size doesn’t fit all. It very true especially when it comes down to PLM implementations. Once released as a toolkit, PDM / PLM systems did a long way from a system that requires special software compilation to be done for every customers to the current system with flexible data models and tools allowing to […]

Share
Read the full article →

How to evaluate PDM before it will ruin your personal productivity

May 2, 2014

Product Data Management (PDM) was around for the last 20-30 years. However, I can see an increased traction around PDM topic last year. You ask me what’s the reason? My simple answer – Dropbox. Think 10 years back. The typical “PDM spiel” was to enable data control and collaboration in a team of engineers. So, […]

Share
Read the full article →

Dropbox Harmony will knockdown PLM collaboration

May 1, 2014

File sync and sharing became the most requested feature to enable collaboration. The days when everybody were co-located in the same office and working from desktop computer are gone. According to Forrester review file sync and sharing can bring real business value. One the picture below you can see what are the most typical tasks for […]

Share
Read the full article →

Pinterest will teach CAD companies to search

April 29, 2014

Search is a difficult problem. Especially when it comes to enterprise and organization. According to researches, more than 2/3 of people searches are not returning satisfactory results. Enterprise is messy, complicated and contains lot of unstructured data these days. CAD and other 3D files are part of this messiness. For many years, we generally thoughts […]

Share
Read the full article →