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Date: Tue, 1 Sep 2015 21:25:46 +0200
From: "Nicklas Karlsson (nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
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Subject: Re: [geda-user] back annotation proposal (RFC)
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On Tue, 1 Sep 2015 11:59:10 -0700
"Ouabache Designworks (z3qmtr45 AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com> wrote:

> We enter designs all the time where we do not have all of the information
> at the time so we enter what we know
> or make a guess and return later to either add or change it.
> ...
> The original designer provides a
> bare minumum of information 
> ...
> For example the original designer will put in a resistor with value,
> tolerence and power ratings. The board designer
> selecting the part has to adhere to the value but can tighten the tolerence
> and raise the power rating since their
> tightened spec will still meet the original requirements.
> ....

Here you a really up to something commercial software lack and what make gEDA good for a fast first sketch where details could be filled in later on. I had planned to make a small contribution with a workflow diagram and add a comment about it. As I understand it you "back annotate" the design changes made in PCB to a new schematic with design choice made during layout.