Long, long ago, and far, far away, yours truly worked for a big company, and designed stuff for it. The way it worked was there we were each given a copy of the "BIG BOOK", which held all the parts that the big copmpany was already buying in bulk. You could design away to your hearts content with those parts... until you decided you had to use ANOTHER part. All of a sudden the wheels fell off. It required the approval of the engineering VP to purchase a new part, and took 2 weeks minimum. But it worked well, really. The company made money, and I made money, and it is still doing everything the same way, except that the BIG BOOK is now a proprietary database and you are now issued a password to get to it. --Bob Kenneth Lumia wrote: > Yeah, it does take time to do it right. What happens if the designer > chooses parts that are not compatible with the production process or > purchasing lead times, etc.? All the designers efforts are wasted. > Getting the parts approved first lets the designer know they are > available, cost effective and compatible. Of course, this process > should be as fast and as automated as possible. > > The "product engineering department" can certainly be involved in the > process, however when tasks are delegated there still needs to be > someone accountable > to ensure that all tasks are completed in a timely manner. Project > managers typically can't get down to the level of components - they > don't know the specifics - think of it this way, do you think that > your management could juggle all your requirements as well as do their > other work? All these other tasks would just be placed onto other > engineer's to-do list, with no specific requirement that they drop > what their doing to handle your issues. Of course, you don't hear > that the person hasn't even started working on the issue until next > weeks status meeting (if they attended). Sometimes it's just easier > to do it yourself rather than wait and hope someone else does it in a > timely and correct manner. Don't forget, if the design is wrong or > not buildable, who is going to get blamed? The designer of course. > > Ken > klumia@adelphia.net > > ----- Original Message ----- From: "Chen Xiao Fan" > > To: "'Microcontroller discussion list - Public.'" > Sent: Monday, February 28, 2005 3:21 AM > Subject: RE: [EE] Pull-up/down resistors > > >> >> When we want to get a new part, we need to request the part >> samples, the quotations through the help of the purchasing >> department. We need to creat the datasheet, ask the layouter >> to create the EDA library. All need to be stored in the engineering >> document manage system (EDM) and need at least >> two levels of approval. >> >> So it is true in effect, all the processes are driven from the >> designers schematic (and the part list from the schematics). >> But I just think this takes too much time and should put too >> much administrative efforts to the design engineer. Can it >> be handled at least partially by the "product engineering >> department". Does someone else have a better approach? >> >> Xiaofan >> > -- Note: To protect our network, attachments must be sent to attach@engineer.cotse.net . 1-866-263-5745 USA/Canada http://beam.to/azengineer -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist