Ahh but you forgot to add Mm (manufacturering margin) and Gu (gold unit). If Gu=M=0 and if Mm makes all products => Gu then there is no problem and M can be 0.
Ah the perfect world is so easy to imagine Dennis Ward Evaluation Engineer American TCB Certification Resource for the Wireless Industry www.atcb.com 703-847-4700 fax 703-847-6888 direct - 703-880-4841 cell - 209-769-8316 NOTICE: This E-Mail message and any attachment may contain privileged or company proprietary information. If you received this message in error, please return to the sender. _____ From: [email protected] [mailto:[email protected]] On Behalf Of Conway, Patrick R (Houston) Sent: 06/28/2007 7:37 AM To: Gary Stuyvenberg; [email protected] Subject: RE: Internal Margins for Emissions Testing Great discussion ! Maybe we can postulate some of this mathematically... (my ten year old son thinks "word problems" should be eradicated from the earth, but can't avoid it in this case...) Suppose a product "P" needs compliance certification "C". And suppose that the life of product P has a timeline "T" including certification testing "Tt" and customer use "Ut". Also suppose there are two unknown quantities: compliance margin "M", and profit due to margin M we shall call "Pm". M = ?? Pm = ?? So the question is this: What value of M will maximize Pm ? My solution: If there is no product without certification then: P = C, and Tt < Ut However, for time T <= Tt Pm <= 0 for time T >= Ut Pm >= 0 Also- we all have past experience that tells us that if T >= Ut and if M ~= 0 then Pm can be negative (and many people start asking me for daily updates!!! ) Rats ! I still can't figure out a general rule for the value of M that maximizes Pm ! This sounds more like a business question than an engineering question. Makes one wonder why engineers are asked to solve this equation, instead of a combined team of engineers and business leaders. Best Regards, Patrick. [email protected] ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________ - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
