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5 Steps to Reducing Design Change Problems

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pocharle
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Re: linking manufactruing , purchase with engineering data base is essential
pocharle   11/23/2011 11:20:10 AM
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Communication between the departments, peers plays a major role in order to avoid problems. These ECR and the remaining steps which are explained in the article may appear in vain by the users, but it largely helps the organization to avoid crisis.

Douglas Alexander
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Re: size of company
Douglas Alexander   11/7/2011 11:31:02 PM
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I am in strong agreement with the premise that the sooner a company puts controls and procedures in place, the better the internal communications, repeatability of product quality, and as anandvy has said, the easier the growth through the development of a solid infrastructure growth discipline.

anandvy
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Re: size of company
anandvy   11/7/2011 4:18:34 AM
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Do you believe a company needs to implement such a system only after it reaches a certain size?

@FLYINGSCOT, very valid point. But I feel its always better to have system and procedures in place irrespective of the size of the company because then it would be easy for the company to scaleup its operations.


Douglas Alexander
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Re: linking manufactruing , purchase with engineering data base is essential
Douglas Alexander   10/17/2011 8:03:37 PM
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Prabhakar, I like it! The final step for quality assurance. Very nice!

prabhakar_deosthali
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Re: linking manufactruing , purchase with engineering data base is essential
prabhakar_deosthali   10/17/2011 3:36:53 AM
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Thanks Douglas for elaborating on this important point.

The loop can be closed further by asking the supplier to mention the drawing number and revision number on the invoice . The incoming inspection system should first verify that the correct drawing has been used before generating the RCIA ( receipt cum inspection advice )  for the physical inspection.

Douglas Alexander
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Re: linking manufactruing , purchase with engineering data base is essential
Douglas Alexander   10/16/2011 11:49:22 AM
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That is precisely correct. I mentioned earlier that Purchasing does not keep their own drawing file and that every time a new fab is ordered, they must go to Documentation Control and sign out the latest Revision of the drawing and attach it to the hard copy of the PO. The fab house must also not take a verbal order or keep archive drawings. This best practice may cause a little more work on the front end, but it saves a lot of heartache, time, and money in the long run. When the fab shop has restricted access to the fab file server at the company, then all drawings in the form of attachments can be under tight control so the only drawing the Fab house can retrieve is the latest the company has released. If the Fab house tries to download an attachment that has an ECO pending, then they simply cannot retrieve the file. They will be instructed to call their contact at the company to receive any additional instructions, including holding off on the Order.

prabhakar_deosthali
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linking manufactruing , purchase with engineering data base is essential
prabhakar_deosthali   10/16/2011 3:50:55 AM
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One important link required in the correct implementation of ECNs is to link the engineering drawing data base with the purchase and manufacturing systems. Such link will generate an automatic alert to the in house manufactruing as well as the outside vendors that a new ECN has become effective for a given part and hence a new drawing needs to be used for manufactruing that part.

 

Douglas Alexander
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Re: Good Steps!
Douglas Alexander   10/14/2011 12:03:17 PM
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Clairvoyant, I include a Component Engineering ISO procedure on my website. When I wrote it, the team leader for ISO said to remember that ISO was not telling us what to do with our procedures, but to simply document what we are already doing and make sure we do what we say we are doing. The Quality audit only verified the steps we documented. Now, here is the rub, the actual process of documenting what we were doing pointed out the shortcomings of our existing processes, so I am in 100% agreement with your statement when the internal ISO documentation reflects best practices across the industry. In other words, given the same chain of command or employee positions and responsibilities, an ECO procedure at one company should be a drop in replacement at another company. Hence the website has a cadre of forms and procedures that can be freely downloaded and distributed as a jump start to a best practice ISO certification process. Thanks for pointing out the value of ISO certs.

Douglas Alexander
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Re: Step for small organization
Douglas Alexander   10/14/2011 11:50:32 AM
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T. Alex, Very true statement. If you refer to www.componentsengineering.com, go to procedures and guidelines, select ECO procedure, you will see under section 5, a cost consideration, and on the flow chart on the same document, item 9 and following page, further procedure for classifying cost impact. Under the Forms tab, select ECN and note that the routing approvals include Finance. If a change is made without considering cost tradeoffs, the company may actually lose money rather than choose a more optimal remedy. Your comment is spot on.

t.alex
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Re: Step for small organization
t.alex   10/14/2011 9:59:12 AM
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If there is such tool (i believe there is), it should be able to capture the business sense as well, such as the impact of the ECN (how much cost and benefit such change can bring about)

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