<s>
ROHR2	B-Algorithm
is	O
a	O
pipe	O
stress	O
analysis	O
CAE	O
system	O
from	O
SIGMA	B-Algorithm
Ingenieurgesellschaft	I-Algorithm
mbH	I-Algorithm
,	O
based	O
in	O
Unna	O
,	O
Germany	O
.	O
</s>
<s>
ROHR2	B-Algorithm
software	O
comes	O
with	O
built	O
in	O
industry	O
standard	O
stress	O
codes	O
;	O
such	O
as	O
ASME	O
B31.1	O
,	O
B31.3	O
,	O
B31.4	O
,	O
B31.5	O
,	O
B31.8	O
,	O
EN	O
13480	O
,	O
CODETI	O
;	O
along	O
with	O
several	O
GRP	O
pipe	O
codes	O
;	O
as	O
well	O
as	O
nuclear	O
stress	O
codes	O
such	O
as	O
ASME	O
Cl	O
.	O
</s>
<s>
ROHR2	B-Algorithm
was	O
created	O
in	O
the	O
late	O
1960s	O
by	O
the	O
one	O
of	O
the	O
first	O
software	O
companies	O
in	O
Germany	O
,	O
Mathematischer	O
Beratungs	O
-	O
und	O
Programmierungsdienst	O
(	O
MBP	O
)	O
,	O
based	O
in	O
Dortmund	O
.	O
</s>
<s>
ROHR2	B-Algorithm
first	O
ran	O
on	O
mainframes	O
such	O
as	O
UNIVAC	B-Operating_System
1	I-Operating_System
,	O
CRAY	O
,	O
and	O
later	O
Prime	O
computer	O
.	O
</s>
<s>
At	O
the	O
time	O
,	O
the	O
program	O
was	O
command	B-Application
line	I-Application
driven	O
with	O
a	O
proprietary	O
programming	O
language	O
to	O
describe	O
the	O
piping	O
systems	O
and	O
define	O
the	O
various	O
load	O
conditions	O
.	O
</s>
<s>
The	O
1987	O
launched	O
version	O
26	O
,	O
was	O
released	O
for	O
IBM	B-Device
PC	I-Device
as	O
well	O
as	O
IBM	B-Device
PC	I-Device
compatible	O
systems	O
.	O
</s>
<s>
In	O
1989	O
,	O
SIGMA	B-Algorithm
Ingenieurgesellschaft	I-Algorithm
mbH	I-Algorithm
was	O
founded	O
in	O
Dortmund	O
,	O
and	O
the	O
ROHR2	B-Algorithm
development	O
and	O
support	O
team	O
moved	O
to	O
the	O
new	O
office	O
premises	O
of	O
SIGMA	O
.	O
</s>
<s>
The	O
graphical	B-Application
user	I-Application
interface	I-Application
was	O
added	O
in	O
1994	O
to	O
the	O
product	O
,	O
which	O
allowed	O
the	O
editing	O
of	O
piping	O
systems	O
without	O
the	O
need	O
of	O
mastering	O
the	O
earlier	O
required	O
programming	O
language	O
.	O
</s>
<s>
From	O
the	O
year	O
2000	O
onwards	O
,	O
the	O
complete	O
licensing	O
and	O
sales	O
activities	O
came	O
under	O
the	O
management	O
of	O
SIGMA	B-Algorithm
Ingenieurgesellschaft	I-Algorithm
mbH	I-Algorithm
;	O
which	O
by	O
then	O
evolved	O
into	O
an	O
engineering	O
company	O
specializing	O
in	O
pipe	O
engineering	O
,	O
as	O
well	O
as	O
a	O
software	O
development	O
firm	O
.	O
</s>
<s>
The	O
recent	O
developments	O
include	O
new	O
bi-directional	O
interfaces	O
based	O
on	O
open	O
standards	O
for	O
transfer	O
of	O
data	O
with	O
other	O
CAD/CAE	O
products	O
such	O
as	O
-	O
AVEVA	O
PDMS	O
,	O
CADISON	O
,	O
Intergraph	O
's	O
PDS	O
,	O
Intergraph	O
's	O
SmartPlant	O
,	O
HICAD	O
,	O
MPDS4	B-Algorithm
,	O
Bentley	O
System	O
's	O
AutoPLANT	O
,	O
Autodesk	O
's	O
PLANT3D	O
and	O
other	O
PCF	O
supported	O
software	O
.	O
</s>
<s>
The	O
integration	O
of	O
ROHR2	B-Algorithm
into	O
the	O
users	O
workflow	O
is	O
supported	O
by	O
third-party	O
interface	O
products	O
to	O
ensure	O
interoperability	O
-	O
a	O
norm	O
in	O
the	O
present	O
engineering	O
software	O
industry	O
.	O
</s>
<s>
The	O
ROHR2	B-Algorithm
program	O
system	O
comes	O
with	O
the	O
following	O
software	O
environments	O
;	O
consisting	O
of	O
ROHR2win	O
-	O
the	O
graphical	B-Application
user	I-Application
interface	I-Application
,	O
the	O
ROHR2	B-Algorithm
-	O
calculation	O
core	O
,	O
and	O
various	O
additional	O
programs	O
(	O
see	O
:	O
related	O
products	O
)	O
.	O
</s>
