<s>
CAD	B-Algorithm
Overlay	I-Algorithm
is	O
a	O
commercial	B-Application
software	I-Application
application	O
for	O
raster-to-vector	O
translation	O
in	O
2D	O
computer-aided	B-Application
design	I-Application
(	O
CAD	B-Application
)	O
and	O
drafting	B-Application
available	O
between	O
1988	O
and	O
1996	O
as	O
a	O
third-party	O
application	O
for	O
AutoCAD	B-Algorithm
and	O
other	O
CAD	B-Application
systems	O
.	O
</s>
<s>
Developed	O
and	O
marketed	O
by	O
Image	O
Systems	O
Technology	O
,	O
CAD	B-Algorithm
Overlay	I-Algorithm
was	O
first	O
released	O
in	O
January	O
1988	O
running	O
on	O
AutoCAD	B-Algorithm
Version	O
2.6	O
.	O
</s>
<s>
CAD	B-Algorithm
Overlay	I-Algorithm
replaced	O
the	O
previous	O
generation	O
of	O
automatic	O
raster-to-vector	O
translation	O
systems	O
by	O
embedding	O
scanned	O
documents	O
and	O
images	O
directly	O
in	O
the	O
CAD	B-Application
system	O
.	O
</s>
<s>
CAD	B-Algorithm
Overlay	I-Algorithm
was	O
derived	O
from	O
a	O
custom	O
AutoCAD	B-Algorithm
application	O
developed	O
using	O
the	O
Nth	O
Engine	O
graphics	O
board	O
in	O
1987	O
by	O
David	O
Chassin	O
for	O
Image	O
Integration	O
Technology	O
,	O
a	O
scanning	O
service	O
bureau	O
in	O
Schenectady	O
,	O
New	O
York	O
.	O
</s>
<s>
The	O
first	O
version	O
of	O
CAD	B-Algorithm
Overlay	I-Algorithm
was	O
demonstrated	O
at	O
A/E/C	O
trade	O
show	O
in	O
Chicago	O
in	O
May	O
1988	O
.	O
</s>
<s>
Subsequent	O
versions	O
include	O
CAD	B-Algorithm
Overlay	I-Algorithm
ESP	O
,	O
CAD	B-Algorithm
Overlay	I-Algorithm
GSX	O
,	O
and	O
CAD	B-Algorithm
Overlay	I-Algorithm
LFX	O
.	O
</s>
<s>
CAD	B-Algorithm
Overlay	I-Algorithm
was	O
subsequently	O
rebranded	O
as	O
Autodesk	O
CADOverlay	O
.	O
</s>
