<s>
DataCAD	B-Algorithm
is	O
a	O
computer-aided	B-Application
design	I-Application
and	I-Application
drafting	I-Application
(	O
CADD	B-Application
)	O
software	O
for	O
2D	O
and	O
3D	O
architectural	O
design	O
and	O
drafting	O
,	O
developed	O
and	O
sold	O
by	O
DATACAD	B-Algorithm
LLC	O
.	O
</s>
<s>
DataCAD	B-Algorithm
runs	O
exclusively	O
on	O
Microsoft	O
Windows-based	O
operating	B-General_Concept
systems	I-General_Concept
,	O
and	O
was	O
one	O
of	O
the	O
first	O
PC-based	O
CADD	B-Application
programs	O
developed	O
specifically	O
for	O
architects	O
.	O
</s>
<s>
DataCAD	B-Algorithm
is	O
the	O
only	O
CADD	B-Application
software	O
ever	O
to	O
be	O
endorsed	O
by	O
the	O
American	O
Institute	O
of	O
Architects	O
(	O
ca	O
.	O
</s>
<s>
By	O
1988	O
,	O
DataCAD	B-Algorithm
was	O
in	O
use	O
by	O
more	O
than	O
12,000	O
firms	O
in	O
the	O
United	O
States	O
and	O
Canada	O
.	O
</s>
<s>
Currently	O
,	O
there	O
are	O
estimated	O
to	O
be	O
more	O
than	O
250,000	O
installations	O
of	O
DataCAD	B-Algorithm
worldwide	O
.	O
</s>
<s>
According	O
to	O
The	O
1989	O
AIA	O
Firm	O
Survey	O
Report	O
,	O
DataCAD	B-Algorithm
is	O
used	O
by	O
10%	O
of	O
AIA	O
member	O
firms	O
,	O
second	O
only	O
to	O
AutoCAD	B-Algorithm
with	O
a	O
45%	O
market	O
share	O
.	O
</s>
<s>
According	O
to	O
The	O
1997	O
AIA	O
Firm	O
Survey	O
Report	O
,	O
DataCAD	B-Algorithm
is	O
used	O
by	O
12%	O
of	O
AIA	O
member	O
firms	O
,	O
second	O
only	O
to	O
AutoCAD	B-Algorithm
with	O
a	O
61%	O
market	O
share	O
.	O
</s>
<s>
In	O
the	O
Spring	O
of	O
1981	O
,	O
a	O
student	O
,	O
Eric	O
V	O
.	O
Smith	O
,	O
began	O
developing	O
a	O
program	O
he	O
called	O
Apple	O
Draw	O
on	O
an	O
Apple	B-Device
II	I-Device
at	O
University	O
of	O
Virginia	O
.	O
</s>
<s>
At	O
this	O
firm	O
he	O
began	O
porting	O
the	O
Apple	O
Draw	O
program	O
to	O
the	O
Corvus	O
Concept	O
platform	O
as	O
DataCAD	B-Algorithm
.	O
</s>
<s>
In	O
1984	O
,	O
only	O
one	O
license	O
of	O
DataCAD	B-Algorithm
was	O
sold	O
before	O
it	O
was	O
ported	O
to	O
the	O
IBM	B-Device
PC	I-Device
platform	O
.	O
</s>
<s>
DataCAD	B-Algorithm
was	O
developed	O
exclusively	O
for	O
the	O
MS-DOS	B-Application
operating	B-General_Concept
system	I-General_Concept
until	O
May	O
1998	O
.	O
</s>
<s>
The	O
DataCAD	B-Algorithm
Boston	O
Users	O
 '	O
Group	O
(	O
DBUG	O
)	O
was	O
formed	O
in	O
December	O
1987	O
by	O
two	O
architects	O
,	O
the	O
late	O
Evan	O
Shu	O
,	O
FAIA	O
(	O
1953	O
-	O
2020	O
)	O
and	O
Rick	O
Gleason	O
,	O
AIA	O
.	O
</s>
<s>
In	O
November	O
2020	O
,	O
DBUG	O
reached	O
a	O
33-year	O
milestone	O
and	O
stands	O
as	O
one	O
of	O
the	O
longest	O
,	O
continuously-running	O
,	O
CAD	B-Application
software	I-Application
users	O
 '	O
groups	O
in	O
the	O
United	O
States	O
.	O
</s>
<s>
In	O
June	O
1989	O
,	O
Cadkey	B-Algorithm
,	O
Inc	O
.	O
(	O
the	O
original	O
developer	O
of	O
CADKEY	B-Algorithm
)	O
,	O
purchased	O
the	O
rights	O
to	O
DataCAD	B-Algorithm
from	O
Microtecture	O
Inc	O
.	O
</s>
<s>
In	O
September	O
1992	O
,	O
Dr.	O
Malcolm	O
Davies	O
was	O
elected	O
President/CEO	O
of	O
Cadkey	B-Algorithm
,	O
Inc	O
.	O
Dr.	O
Davies	O
joined	O
Cadkey	B-Algorithm
from	O
Autodesk	O
where	O
from	O
1988	O
to	O
1992	O
he	O
was	O
V.P.	O
</s>
<s>
In	O
November	O
1993	O
,	O
the	O
price	O
of	O
DataCAD	B-Algorithm
was	O
drastically	O
reduced	O
from	O
$	O
2,995	O
to	O
$150	O
coincident	O
with	O
a	O
major	O
shift	O
from	O
dealer-based	O
sales	O
to	O
direct	O
mail-based	O
sales	O
.	O
</s>
<s>
In	O
October	O
1994	O
,	O
the	O
first	O
online	B-Application
forum	I-Application
(	O
also	O
known	O
as	O
The	O
DBUG	O
Forum	O
)	O
dedicated	O
to	O
DataCAD	B-Algorithm
users	O
was	O
established	O
by	O
the	O
late	O
Evan	O
Shu	O
,	O
FAIA	O
(	O
1953	O
-	O
2020	O
)	O
.	O
</s>
<s>
On	O
October	O
2	O
,	O
1996	O
,	O
a	O
newly	O
formed	O
company	O
,	O
DATACAD	B-Algorithm
LLC	O
,	O
co-founded	O
by	O
Mark	O
F	O
.	O
Madura	O
,	O
the	O
late	O
David	O
A	O
.	O
Giesselman	O
(	O
1957	O
-	O
2020	O
)	O
,	O
and	O
H	O
.	O
William	O
Mirbach	O
,	O
purchased	O
the	O
rights	O
to	O
DataCAD	B-Algorithm
from	O
Micro	O
Control	O
Systems	O
,	O
Inc	O
.	O
(	O
formerly	O
Cadkey	B-Algorithm
,	O
Inc	O
.	O
)	O
.	O
</s>
<s>
In	O
February	O
1998	O
,	O
DATACAD	B-Algorithm
,	O
along	O
with	O
14	O
other	O
companies	O
,	O
joined	O
the	O
newly	O
formed	O
,	O
OpenDWG	O
Alliance	O
(	O
now	O
Open	O
Design	O
Alliance	O
)	O
as	O
a	O
founding	O
member	O
.	O
</s>
<s>
The	O
alliance	O
is	O
dedicated	O
to	O
the	O
promotion	O
of	O
Autodesk	O
's	O
DWG	O
drawing	O
file	O
format	O
as	O
an	O
open	O
industry	O
standard	O
for	O
the	O
exchange	O
of	O
CADD	B-Application
drawings	O
.	O
</s>
<s>
A	O
lower-cost	O
version	O
,	O
DataCAD	B-Algorithm
LT	O
(	O
pronounced	O
"	O
el-tee	O
"	O
)	O
,	O
was	O
first	O
introduced	O
in	O
2001	O
.	O
</s>
<s>
On	O
October	O
2	O
,	O
2020	O
,	O
Mark	O
F	O
.	O
Madura	O
reached	O
a	O
24-year	O
milestone	O
as	O
President	O
and	O
CEO	O
of	O
DATACAD	B-Algorithm
LLC	O
.	O
</s>
<s>
On	O
April	O
2	O
,	O
2019	O
,	O
Principal	O
DataCAD	B-Algorithm
Author	O
,	O
the	O
late	O
David	O
A	O
.	O
Giesselman	O
(	O
1957	O
-	O
2020	O
)	O
,	O
Senior	O
V.P.	O
</s>
<s>
of	O
DATACAD	B-Algorithm
LLC	O
reached	O
a	O
35-year	O
milestone	O
as	O
a	O
DataCAD	B-Algorithm
software	O
engineer	O
.	O
</s>
