<s>
Westi	B-Application
(	O
Westinghouse	O
Teleprocessing	B-Application
Interface	B-Application
System	O
)	O
was	O
one	O
of	O
two	O
early	O
local	O
teleprocessing	B-Application
packages	O
for	O
IBM	O
's	O
DOS/VSE	B-Application
environment	O
.	O
</s>
<s>
Westi	B-Application
stood	O
for	O
Westinghouse	O
Terminal	O
Interactive	O
.	O
</s>
<s>
Westi	B-Application
provided	O
an	O
interface	B-Application
and	O
access	B-Application
method	I-Application
for	O
programmers	O
to	O
'	O
talk	O
 '	O
to	O
monitors	O
and	O
handle	O
data	O
entry	O
.	O
</s>
<s>
Such	O
access	B-Application
methods	I-Application
later	O
became	O
known	O
as	O
APIs	B-Application
and	O
the	O
handlers	O
a	O
form	O
of	O
transaction	B-General_Concept
processing	I-General_Concept
.	O
</s>
<s>
In	O
1981	O
,	O
WESTI	B-Application
was	O
considered	O
the	O
main	O
competitor	O
to	O
CICS	B-Application
,	O
holding	O
second	O
place	O
in	O
market	O
share	O
for	O
IBM	O
mainframe	B-Architecture
transaction	B-General_Concept
processing	I-General_Concept
monitors	I-General_Concept
.	O
</s>
<s>
Initially	O
written	O
for	O
the	O
IBM	B-Device
2260	I-Device
running	O
under	O
DOS	O
on	O
IBM	O
mainframes	B-Architecture
,	O
the	O
original	O
product	O
was	O
offered	O
free	O
for	O
IBM	O
users	O
.	O
</s>
<s>
With	O
the	O
advent	O
of	O
DOS/VS	B-Application
and	O
the	O
IBM	B-Operating_System
3270	I-Operating_System
series	O
terminals	O
,	O
Westinghouse	O
realized	O
they	O
could	O
recover	O
part	O
of	O
their	O
development	O
costs	O
and	O
commercialized	O
the	O
product	O
,	O
circa	O
1970	O
.	O
</s>
<s>
Westi	B-Application
consumed	O
less	O
memory	O
than	O
CICS	B-Application
,	O
which	O
was	O
attractive	O
in	O
the	O
highly	O
memory-constrained	O
computing	O
environments	O
of	O
the	O
1970s	O
,	O
in	O
which	O
256KB	O
was	O
considered	O
a	O
large	O
amount	O
of	O
memory	O
.	O
</s>
<s>
Westi	B-Application
operated	O
as	O
an	O
application	B-Application
's	O
mainline	O
program	O
and	O
,	O
like	O
IBM	O
's	O
soon	O
to	O
follow	O
CICS	B-Application
,	O
programmers	O
wrote	O
subroutines	O
to	O
read	O
and	O
write	O
data	O
to	O
and	O
from	O
terminals	O
and	O
discs	O
.	O
</s>
<s>
This	O
real	O
time	O
paradigm	O
became	O
known	O
as	O
transaction	B-General_Concept
processing	I-General_Concept
.	O
</s>
<s>
This	O
differed	O
from	O
Westi	B-Application
's	O
primary	O
competitor	O
,	O
DUCS	B-Application
,	O
which	O
reversed	O
that	O
model	O
in	O
that	O
it	O
was	O
a	O
subroutine	O
package	O
that	O
read	O
from	O
and	O
wrote	O
to	O
monitors	O
.	O
</s>
<s>
While	O
Westi	B-Application
was	O
not	O
as	O
easy	O
to	O
program	O
and	O
use	O
as	O
DUCS	B-Application
,	O
Westi	B-Application
(	O
like	O
CICS	B-Application
)	O
handled	O
task	O
management	O
.	O
</s>
<s>
In	O
terms	O
of	O
speed	O
,	O
Westi	B-Application
fell	O
between	O
DUCS	B-Application
and	O
the	O
considerably	O
more	O
process-bound	O
CICS	B-Application
.	O
</s>
<s>
Its	O
popularity	O
made	O
Westinghouse	O
realize	O
Westi	B-Application
had	O
potential	O
as	O
a	O
commercial	O
product	O
.	O
</s>
<s>
In	O
1972	O
,	O
IBM	O
released	O
DOS/VS	B-Application
with	O
the	O
IBM/370	B-Device
and	O
the	O
first	O
IBM	B-Operating_System
3270	I-Operating_System
terminals	O
,	O
and	O
the	O
Westinghouse	O
Software	O
group	O
began	O
a	O
rewrite	O
for	O
new	O
products	O
.	O
</s>
<s>
At	O
that	O
point	O
,	O
the	O
Westinghouse	O
product	O
line	O
,	O
WDU	B-General_Concept
and	O
WESTI	B-Application
,	O
bifurcated	O
,	O
taking	O
independent	O
development	O
paths	O
.	O
</s>
<s>
The	O
original	O
development	O
team	O
moved	O
to	O
Orlando	O
,	O
Florida	O
,	O
where	O
it	O
eventually	O
came	O
under	O
the	O
management	O
of	O
Dr.	O
Ray	O
Ferguson	O
and	O
focused	O
on	O
integration	O
with	O
VSE	B-Application
and	O
matching	O
features	O
with	O
CICS	B-Application
.	O
</s>
<s>
WEMSSA	O
,	O
under	O
the	O
direction	O
of	O
Eric	O
Lutaud	O
,	O
contracted	O
with	O
GOAL	O
Systems	O
and	O
eventually	O
developer	O
Leigh	O
Lundin	O
(	O
author	O
of	O
DUCS	B-Application
Remote	O
)	O
for	O
development	O
,	O
which	O
focused	O
on	O
adding	O
remote	O
teleprocessing	B-Application
in	O
Avignon	O
,	O
France	O
.	O
</s>
<s>
However	O
,	O
part	O
way	O
into	O
development	O
,	O
Westinghouse	O
began	O
to	O
break	O
up	O
the	O
division	O
during	O
the	O
outsourcing	B-Architecture
thrust	O
of	O
the	O
Reaganomics	O
era	O
.	O
</s>
<s>
Through	O
badly	O
managed	O
negotiations	O
,	O
Westinghouse	O
ended	O
up	O
with	O
neither	O
developers	O
or	O
outsourcing	B-Architecture
partners	O
,	O
which	O
spelled	O
the	O
end	O
for	O
one	O
of	O
the	O
industries	O
foremost	O
software	O
groups	O
.	O
</s>
