<s>
Entera	B-Operating_System
is	O
a	O
middleware	B-General_Concept
product	O
introduced	O
in	O
the	O
mid-1990s	O
by	O
the	O
Open	O
Environment	O
Corporation	O
(	O
OEC	O
)	O
,	O
an	O
early	O
implementation	O
of	O
the	O
three-tiered	B-Operating_System
client	B-Operating_System
–	I-Operating_System
server	I-Operating_System
model	I-Operating_System
development	O
model	O
.	O
</s>
<s>
Entera	B-Operating_System
viewed	O
business	O
software	O
as	O
a	O
collection	O
of	O
services	O
,	O
rather	O
than	O
as	O
a	O
monolithic	B-General_Concept
application	I-General_Concept
.	O
</s>
<s>
Entera	B-Operating_System
was	O
designed	O
to	O
allow	O
companies	O
to	O
build	O
and	O
manage	O
large	O
,	O
multinational	O
information	O
systems	O
,	O
while	O
preserving	O
existing	O
investments	O
in	O
skill	O
sets	O
,	O
hardware	O
and	O
software	O
systems	O
.	O
</s>
<s>
The	O
multi-tiered	O
architecture	O
solved	O
problems	O
that	O
were	O
inherent	O
in	O
first	O
generation	O
client/server	B-Operating_System
application	O
development	O
,	O
including	O
the	O
lack	O
of	O
scalability	B-Architecture
,	O
manageability	O
,	O
application	O
security	O
,	O
and	O
vendor	O
lock-in	O
.	O
</s>
<s>
Entera	B-Operating_System
was	O
built	O
on	O
industry-standard	O
distributed	B-Architecture
computing	I-Architecture
infrastructures	O
,	O
and	O
supported	O
a	O
variety	O
of	O
programming	O
languages	O
with	O
a	O
management	O
framework	O
.	O
</s>
<s>
After	O
its	O
origination	O
with	O
OEC	O
,	O
and	O
OEC	O
’s	O
purchase	O
by	O
Borland	O
Software	O
,	O
the	O
rights	O
to	O
Entera	B-Operating_System
were	O
acquired	O
by	O
eCube	O
Systems	O
LLC	O
in	O
2003	O
.	O
</s>
<s>
Today	O
,	O
Entera	B-Operating_System
and	O
NXTera	O
,	O
are	O
still	O
used	O
by	O
Fortune	O
1000	O
companies	O
in	O
several	O
countries	O
and	O
developed	O
,	O
maintained	O
and	O
marketed	O
by	O
eCube	O
Systems	O
.	O
</s>
<s>
In	O
1992	O
,	O
Open	O
Environment	O
Corporation	O
(	O
“	O
OEC	O
”	O
)	O
,	O
located	O
in	O
Cambridge	O
,	O
Massachusetts	O
,	O
released	O
a	O
middleware	B-General_Concept
product	O
called	O
“	O
OEC	O
Toolkit.	O
”	O
The	O
product	O
,	O
which	O
eventually	O
would	O
become	O
known	O
as	O
“	O
Entera	B-Operating_System
,	O
”	O
was	O
the	O
first	O
middleware	B-General_Concept
product	O
sold	O
as	O
an	O
application	B-Application
server	I-Application
platform	O
.	O
</s>
<s>
In	O
subsequent	O
years	O
,	O
the	O
company	O
added	O
to	O
Entera	B-Operating_System
three-tier	B-Operating_System
application	B-Application
monitoring	I-Application
called	O
AppMinder	O
,	O
and	O
a	O
transaction	B-Application
processing	I-Application
system	I-Application
called	O
Entera	B-Operating_System
FX	O
.	O
</s>
<s>
Over	O
the	O
next	O
nine	O
years	O
,	O
OEC	O
sold	O
tens	O
of	O
millions	O
of	O
dollars	O
worth	O
of	O
Entera	B-Operating_System
to	O
at	O
least	O
300	O
Fortune	O
1000	O
customers	O
.	O
</s>
<s>
While	O
continuing	O
to	O
develop	O
Entera	B-Operating_System
,	O
two	O
primary	O
versions	O
of	O
the	O
software	O
were	O
developed	O
:	O
the	O
Transmission	B-Protocol
Control	I-Protocol
Protocol	I-Protocol
(	O
TCP	O
)	O
version	O
and	O
the	O
Distributed	B-Operating_System
Computing	I-Operating_System
Environment	I-Operating_System
(	O
DCE	O
)	O
,	O
the	O
latter	O
based	O
on	O
DCS	O
Cell	O
Directory	O
Service	O
,	O
the	O
DCE	O
endpoint	O
mapper	O
,	O
and	O
DCE	O
threads	B-Operating_System
.	O
</s>
<s>
Despite	O
various	O
challenges	O
,	O
the	O
DCE	O
version	O
of	O
Entera	B-Operating_System
became	O
popular	O
with	O
IBM	O
and	O
its	O
customer	O
base	O
because	O
it	O
simplified	O
the	O
complexity	O
of	O
DCE	O
development	O
.	O
</s>
<s>
During	O
this	O
time	O
,	O
OEC	O
developers	O
began	O
work	O
on	O
a	O
fourth	O
version	O
of	O
Entera	B-Operating_System
,	O
aimed	O
at	O
unifying	O
the	O
TCP	O
and	O
DCE	O
versions	O
.	O
</s>
<s>
This	O
newer	O
version	O
implemented	O
multithreading	B-Operating_System
and	O
broker	O
persistence	O
.	O
</s>
<s>
Prior	O
to	O
its	O
acquisition	O
,	O
OEC	O
developed	O
a	O
number	O
of	O
products	O
including	O
the	O
OEC	O
Toolkit	O
,	O
Encompass	O
,	O
Netminder	O
,	O
Entera	B-Operating_System
Workbench	O
,	O
Oec3270	O
,	O
Appminder	O
,	O
Entera	B-Operating_System
OLE	O
,	O
and	O
Entera	B-Operating_System
FX	O
.	O
</s>
<s>
Borland	O
continued	O
to	O
invest	O
in	O
Entera	B-Operating_System
,	O
but	O
the	O
software	O
peaked	O
in	O
popularity	O
.	O
</s>
<s>
At	O
this	O
time	O
,	O
over	O
300	O
Fortune	O
1000	O
companies	O
were	O
using	O
Entera	B-Operating_System
worldwide	O
.	O
</s>
<s>
During	O
the	O
post-buyout	O
transition	O
phase	O
,	O
the	O
original	O
Entera	B-Operating_System
development	O
team	O
underwent	O
some	O
changes	O
.	O
</s>
<s>
Entera	B-Operating_System
4.0	O
was	O
released	O
prematurely	O
,	O
causing	O
problems	O
with	O
its	O
use	O
as	O
a	O
replacement	O
for	O
Entera	B-Operating_System
3.2	O
.	O
</s>
<s>
Over	O
the	O
next	O
few	O
years	O
,	O
Borland	O
sold	O
hundreds	O
of	O
copies	O
of	O
Entera	B-Operating_System
to	O
new	O
and	O
former	O
Entera	B-Operating_System
customers	O
.	O
</s>
<s>
In	O
November	O
1997	O
,	O
Borland	O
announced	O
its	O
acquisition	O
of	O
Visigenic	O
Software	O
(	O
VSGN	O
)	O
,	O
a	O
CORBA	B-Architecture
vendor	O
and	O
the	O
developer	O
of	O
VisiBroker	O
.	O
</s>
<s>
VisiBroker	O
overlapped	O
some	O
of	O
Entera	B-Operating_System
’s	O
capabilities	O
while	O
adding	O
support	O
for	O
the	O
Java	B-Language
programming	I-Language
language	I-Language
,	O
object-orientation	O
and	O
a	O
degree	O
of	O
complexity	O
to	O
distributed	B-Architecture
computing	I-Architecture
.	O
</s>
<s>
They	O
spent	O
less	O
time	O
on	O
developing	O
Entera	B-Operating_System
and	O
turned	O
their	O
attention	O
to	O
Visibroker	O
.	O
</s>
<s>
Borland	O
changed	O
its	O
name	O
to	O
Inprise	O
,	O
a	O
fusion	O
of	O
“	O
integrating	O
and	O
enterprise.	O
”	O
Their	O
new	O
aim	O
was	O
to	O
integrate	O
Borland	O
’s	O
tools	O
including	O
Delphi	B-Language
,	O
C++Builder	B-Language
,	O
and	O
JBuilder	B-Application
with	O
Visigenic	O
’s	O
COBRA-based	O
Visibroker	O
for	O
C++	B-Language
and	O
Java	B-Language
.	O
</s>
<s>
With	O
their	O
efforts	O
concentrated	O
on	O
Visigenic	O
Software	O
,	O
Borland	O
unsuccessfully	O
attempted	O
to	O
switch	O
Entera	B-Operating_System
users	O
to	O
Visibroker	O
,	O
before	O
ultimately	O
discontinuing	O
active	O
development	O
of	O
Entera	B-Operating_System
in	O
2001	O
.	O
</s>
<s>
Even	O
while	O
experiencing	O
growth	O
within	O
its	O
customer	O
base	O
,	O
Borland	O
quietly	O
reallocated	O
Entera	B-Operating_System
development	O
resources	O
.	O
</s>
<s>
Borland	O
licensed	O
the	O
rights	O
to	O
Entera	B-Operating_System
to	O
eCube	O
Systems	O
LLC	O
in	O
2002	O
to	O
provide	O
a	O
migration	O
path	O
for	O
existing	O
clients	O
and	O
to	O
enable	O
further	O
development	O
of	O
the	O
Entera	B-Operating_System
platform	O
.	O
</s>
<s>
eCube	O
Systems	O
continues	O
to	O
support	O
and	O
develop	O
existing	O
Entera	B-Operating_System
installations	O
today	O
.	O
</s>
<s>
The	O
latest	O
version	O
of	O
Entera	B-Operating_System
is	O
called	O
NXTera	O
.	O
</s>
<s>
It	O
has	O
added	O
new	O
technology	O
models	O
and	O
allows	O
for	O
interoperability	O
with	O
contemporary	O
middleware	B-General_Concept
technologies	O
including	O
messaging	O
platforms	O
and	O
web	O
service	O
standards	O
such	O
as	O
SOAP	B-Application
and	O
REST	O
.	O
</s>
<s>
In	O
February	O
2012	O
Micro	O
Focus	O
and	O
eCube	O
Systems	O
announced	O
their	O
cooperation	O
in	O
the	O
delivery	O
of	O
middleware	B-General_Concept
consulting	O
.	O
</s>
<s>
Today	O
eCube	O
and	O
Micro	O
Focus	O
collaborate	O
on	O
a	O
variety	O
of	O
middleware	B-General_Concept
projects	O
.	O
</s>
