<s>
OpenL	B-Language
Tablets	I-Language
is	O
a	O
business	B-Application
rule	I-Application
management	I-Application
system	I-Application
(	O
BRMS	B-Application
)	O
and	O
a	O
business	O
rules	O
engine	O
(	O
BRE	O
)	O
based	O
on	O
table	O
representation	O
of	O
rules	O
.	O
</s>
<s>
OpenL	O
includes	O
such	O
table	O
types	O
as	O
decision	O
table	O
,	O
decision	B-Algorithm
tree	I-Algorithm
,	O
spreadsheet-like	O
calculator	O
.	O
</s>
<s>
The	O
OpenL	B-Language
Tablets	I-Language
project	O
was	O
started	O
as	O
an	O
in-house	O
development	O
project	O
in	O
2003	O
and	O
later	O
in	O
2006	O
was	O
uploaded	O
to	O
SourceForge	B-Application
.	O
</s>
<s>
Initially	O
it	O
was	O
an	O
open-source	B-Application
business	O
rule	O
engine	O
for	O
Java	B-Language
.	O
</s>
<s>
Starting	O
from	O
version	O
5	O
it	O
became	O
a	O
BRMS	B-Application
.	O
</s>
<s>
OpenL	B-Language
Tablets	I-Language
engine	O
is	O
specially	O
designed	O
for	O
business	O
rules	O
and	O
uses	O
table	O
rules	O
presentation	O
.	O
</s>
<s>
OpenL	B-Language
Tablets	I-Language
is	O
based	O
on	O
OpenL	O
framework	O
for	O
creating	O
custom	O
languages	O
running	O
on	O
Java	B-Language
VM	O
.	O
</s>
<s>
Currently	O
,	O
it	O
uses	O
2	O
languages	O
:	O
table	O
structure	O
for	O
rules	O
format	O
and	O
java-like	O
for	O
code	O
snippets	O
in	O
rules	O
.	O
</s>
<s>
Java-like	O
language	O
is	O
Java	B-Language
5.0	O
implementation	O
with	O
Business	O
User	O
Extensions	O
.	O
</s>
<s>
OpenL	B-Language
Tablets	I-Language
rules	O
are	O
mixture	O
of	O
declarative	B-Language
programming	I-Language
for	O
rules	O
logic	O
and	O
imperative	B-Application
programming	I-Application
for	O
workflow	O
control	O
.	O
</s>
<s>
The	O
project	O
is	O
written	O
in	O
Java	B-Language
,	O
but	O
can	O
be	O
used	O
at	O
any	O
platform	O
using	O
Service-oriented	O
architecture	O
approach	O
,	O
e.g.	O
</s>
<s>
The	O
OpenL	B-Language
Tablets	I-Language
engine	O
has	O
patent	O
pending	O
validation	O
feature	O
.	O
</s>
<s>
There	O
are	O
usages	O
of	O
OpenL	B-Language
Tablets	I-Language
which	O
may	O
be	O
patented	O
.	O
</s>
<s>
OpenL	B-Language
Tablets	I-Language
includes	O
several	O
productivity	O
tools	O
and	O
applications	O
addressing	O
BRMS	B-Application
related	O
capabilities	O
.	O
</s>
<s>
CLIPS	B-Application
:	O
public	O
domain	O
software	O
tool	O
for	O
building	O
expert	O
systems	O
.	O
</s>
<s>
ILOG	O
rules	O
:	O
a	O
business	B-Application
rule	I-Application
management	I-Application
system	I-Application
.	O
</s>
<s>
JBoss	B-Language
Drools	I-Language
:	O
a	O
business	B-Application
rule	I-Application
management	I-Application
system	I-Application
(	O
BRMS	B-Application
)	O
.	O
</s>
<s>
JESS	B-Language
:	O
a	O
rule	O
engine	O
for	O
the	O
Java	B-Language
platform	O
-	O
it	O
is	O
a	O
superset	O
of	O
CLIPS	B-Application
programming	I-Application
language	I-Application
.	O
</s>
<s>
Prolog	B-Language
:	O
a	O
general	O
purpose	O
logic	O
programming	O
language	O
.	O
</s>
<s>
DTRules	O
:	O
a	O
Decision	O
Table-based	O
,	O
open-sourced	O
rule	O
engine	O
for	O
Java	B-Language
.	O
</s>
