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Date:	Wed, 10 Jun 2015 15:57:42 -0700
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Subject:	Re: [geda-user] Interchange formats
From:	"Ouabache Designworks (z3qmtr45 AT gmail DOT com)" <geda-user AT delorie DOT com>
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On Wed, Jun 10, 2015 at 1:26 PM, Evan Foss (evanfoss AT gmail DOT com) <
geda-user AT delorie DOT com> wrote:

> For those of us who are not as well versed in our history of this
> subject. I would like to know why so many common EDA formats have
> failed?
>

Well EDIF and IP_XACT both failed because while they have seen wide
adoption the standards were loose enough that every vendor adopted their
own slighty different "Flavors" of the standard. Unless you went to the
effort to read in all known flavors then you couldn't read in other vendors
files. This was compounded by the fact that
our industry keeps growing and the tools get new features that need new
data base objects.

A better approach might be to look at the standards that have succeeded and
figure out why. Jtag has been around for 20 years and is still quite
healthy. They did not begin by releasing one huge standard, They started
with 1149.1 that simply covered the bare bones minimun that everyone had to
follow. As new features were needed they would add them in a new dot level.
They are currently up to 1149.7.

John Eaton

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<div dir=3D"ltr"><br><div class=3D"gmail_extra"><br><div class=3D"gmail_quo=
te">On Wed, Jun 10, 2015 at 1:26 PM, Evan Foss (<a href=3D"mailto:evanfoss@=
gmail.com">evanfoss AT gmail DOT com</a>) <span dir=3D"ltr">&lt;<a href=3D"mailto:=
geda-user AT delorie DOT com" target=3D"_blank">geda-user AT delorie DOT com</a>&gt;</spa=
n> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;b=
order-left:1px #ccc solid;padding-left:1ex">For those of us who are not as =
well versed in our history of this<br>
subject. I would like to know why so many common EDA formats have<br>
failed?<br>
</blockquote></div><br></div><div class=3D"gmail_extra">Well EDIF and IP_XA=
CT both failed because while they have seen wide adoption the standards wer=
e loose enough that every vendor adopted their own slighty different &quot;=
Flavors&quot; of the standard. Unless you went to the effort to read in all=
 known flavors then you couldn&#39;t read in other vendors files. This was =
compounded by the fact that<br></div><div class=3D"gmail_extra">our industr=
y keeps growing and the tools get new features that need new data base obje=
cts.<br><br></div><div class=3D"gmail_extra">A better approach might be to =
look at the standards that have succeeded and figure out why. Jtag has been=
 around for 20 years and is still quite healthy. They did not begin by rele=
asing one huge standard, They started with 1149.1 that simply covered the b=
are bones minimun that everyone had to follow. As new features were needed =
they would add them in a new dot level. They are currently up to 1149.7.<br=
><br></div><div class=3D"gmail_extra">John Eaton<br><br><br></div><div clas=
s=3D"gmail_extra"><br><br><br></div><div class=3D"gmail_extra"><br><br>=C2=
=A0<br></div><div class=3D"gmail_extra"><br></div></div>

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