Over the years this topic comes up at every customer we work with. CEO’s are getting told time and time again that SAP, Oracle, even Great Plains and Fourthshift can manage corporate product information either as effectively or better than the PLM vendors who have established the offerings.
ERP is strong for what it does:
- 10-20% of product costs are controllable after development phase
- Production asset management – physical warehouse
ERP FOCUS:
- Build and plan
- Order management
- Forecasting
- Lightweight data handling
- Data object and data field integrations
- Reporting and analysis tools
- Transaction centric
PLM has different but compatible strengths:
- 80% of product costs are defined in development phase
- Information asset management – data warehouse
PLM FOCUS:
- Change management
- Design and collaborate
- Security
- File vaulting
- Heavyweight file handling
- Deep file level integrations
- Complex object relationships
- Process and workflow centric
Here are situations we’ve encountered that show these differences:
EXAMPLE 1:
A major aerospace company was planning on implementing a tier 1 ERP system complete with PLM functionality. The project team had a well established set of requirements for managing product information, change control, bill of material structures etc. They had down selected the PLM suppliers to a Tier 1 ERP company and a Tier 1 PLM company and put both products thru a serious set of qualifications scripts - the ERP product did well on the functionality stand point however because it is a transactional system at it’s core - it failed miserably on the delivery of files and product information to end users due to poor file management performance.
EXAMPLE 2:
Another company, an equipment manufacturer was assured throughout their ERP deployment that the system would be more than capable of replacing the existing in house PDM system. After 9 months spent preparing the ERP system, 2 weeks prior to production cutover the project team discovered that core workflows used in the PDM system would not work within the new ERP system. Because ERP is very rules based and forward transaction focused, the concept of modifying a change order while in a routing was not supported, nor could a change order be backed out to make the updates - the only solution would be to fully process a change order, then issue a second change order with the correct.
EXAMPLE 3:
A mid tier ERP company claimed to offer a work in process system to provide change management and document control for bills of material. The initial assessment based upon the vendor claims was that the customer, a small electronics manufacturer would be able to use the system for change management to assist with their needs to conform to FDA, RoHS and other regulatory information management situations. With moderate investigation, it was found that the workflow was an approval routing with no associativity to documents and/or item masters - it was purely a signoff router. In addition, the items and associated documents were not version controled at all, nor were permissions for access selective to protect “released” items more tightly than in-process items. Once again, an ERP company treated information as if it was a transaction, not subject to version control or change control and could not adequately act as an information vault.
Some of my favorite quotes over the past several years are:
“You know too much about what PLM should do for you to be satisfied with our offering - our system is really intended for our captive customers who have never had a change management system before” - a Tier 1 ERP sales representative
“If I used our ERP system for change management I’d have to triple my document control resources or take 3 times as long to process the change orders we handle. The ERP system was a box, and empty box with 4 sides, and we would have had to define everything in the box to even begin to use it for it’s PLM functionality” - Doc control manager at an equipment manufacturer in reference to a Tier 1 ERP system.
It is encumbant upon the customers of ERP to understand what ERP systems can or can not do - beyond what the ERP companies are telling the CXO’s and the ERP Shareholders, because the reality often does not match the sales pitch.
Copyright 2006, LR Hirr, All Rights Reserved