Charles Barker@I-O INC
05/22/98 01:04 PM
It is hard enough to get everyone in house to agree to a performance spec
and then....................... the reference documents change!
Bah Humbug! One step forward and slide back two. When the same base number
is used on new revisions, at least you have the choice ( if you want) of
referring to Spec. "XXX,' latest revision.
[log in to unmask] on 05/22/98 11:15:36 AM
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To: [log in to unmask]
cc: (bcc: Charles Barker/US/I-O INC)
Subject: Re: [TN] pwb-cca : FW: [TN] IPC Specs
I second Ralph's feeling and suggestion. We have exactly the same problem
here in Lockheed Martin Missiles and Space. Thank you Ralph.
David Ma
Materials and Processes
> ----------
> From: Dieffenbacher, William C
> Reply To: [log in to unmask]
> Sent: Thursday, May 21, 1998 1:40 PM
> To: EPI_Exploder
> Subject: pwb-cca : FW: [TN] IPC Specs
>
> Interesting commentary below. I'm sure most of us can relate to it.
>
> Bill Dieffenbacher
>
> > ----------
> > From: Kane, Joseph
> > Sent: Thursday, May 21, 1998 4:12 PM
> > To: Burke, James F; Dieffenbacher, William C
> > Subject: FW: [TN] IPC Specs
> >
> >
> >
> > ----------
> > From: Vaughan, Ralph H[SMTP:[log in to unmask]]
> > Reply To: TechNet E-Mail Forum.;Vaughan, Ralph H
> > Sent: Wednesday, May 20, 1998 4:40 PM
> > To: [log in to unmask]
> > Subject: [TN] IPC Specs
> >
> > Greeting,
> >
> > I will be the first to commend ipc for all the good work that they do
> > for us, but I gotta say that the practice of obsoleting specs and
> > replacing with new, renumbered documents is making me long for the old
> > mil-spec days where specs NEVER changed (I never thought I'd say that).
> > Not too long ago, after much spec comparison and analysis, we convinced
> > our government customers that it would be prudent to move from
> > Mil-P-55110 to the IPC-RB-276. In the time it took to get the new
> > drawing callout approved, re-train the pwb designers and revise their
> > guidelines, and bring our stellar board suppliers up to speed (no small
> > task), RB-276 had been superceded by the 6012 document. Now I just
> > learn today that IPC-D-275 is superceded by another document. This
> > kills efforts to streamline and standardize documentation systems.
> > Also, when these continuous changes take place, it would be convenient
> > to have a detailed side paper published explaining all the changes (and
> > maybe why the changes were made). May be a lot to ask, but it would
> > keep every user from doing it individually.
> >
> > Anyone else see this as a problem?
> >
> > That's all the whining for now.
> >
> > Ralph
> >
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