<s>
The	O
Architecture	B-Protocol
of	I-Protocol
Interoperable	I-Protocol
Information	I-Protocol
Systems	I-Protocol
(	O
AIOS	O
)	O
is	O
a	O
reference	O
architecture	O
for	O
the	O
development	O
of	O
interoperable	O
enterprise	B-General_Concept
information	I-General_Concept
systems	I-General_Concept
.	O
</s>
<s>
This	O
broad	O
understanding	O
is	O
for	O
example	O
also	O
embodied	O
by	O
the	O
Zachman	B-Library
Framework	I-Library
.	O
</s>
<s>
Accordingly	O
,	O
an	O
Architecture	B-Protocol
of	I-Protocol
Interoperable	I-Protocol
Information	I-Protocol
Systems	I-Protocol
can	O
be	O
defined	O
as	O
the	O
building	O
plan	O
of	O
a	O
cross-organizational	O
information	O
system	O
,	O
which	O
enables	O
organizations	O
to	O
execute	O
a	O
collaborative	O
business	O
process	O
among	O
them	O
.	O
</s>
<s>
Following	O
the	O
work	O
on	O
interoperable	O
information	O
systems	O
conducted	O
in	O
European	O
Research	O
Projects	O
in	O
2010	O
the	O
Architecture	B-Protocol
of	I-Protocol
Interoperable	I-Protocol
Information	I-Protocol
Systems	I-Protocol
(	O
AIOS	O
)	O
was	O
published	O
as	O
a	O
reference	O
for	O
the	O
construction	O
of	O
loosely	O
coupled	O
,	O
interoperating	O
information	O
systems	O
and	O
for	O
the	O
systematic	O
,	O
model-based	O
enactment	O
of	O
collaborative	O
business	O
processes	O
.	O
</s>
<s>
One	O
element	O
comprised	O
in	O
the	O
third	O
category	O
is	O
a	O
"	O
BII-repository	O
"	O
,	O
in	O
which	O
each	O
organization	O
publishes	O
the	O
content	O
of	O
its	O
Business	B-Protocol
Interoperability	I-Protocol
Interface	I-Protocol
(	O
BII	O
)	O
to	O
collaboration	O
partners	O
.	O
</s>
<s>
This	O
public	O
view	O
describes	O
the	O
information	O
system	O
boundaries	O
of	O
an	O
organization	O
to	O
its	O
collaboration	O
partners	O
and	O
connects	O
internal	O
and	O
external	O
information	O
systems	O
,	O
thereby	O
also	O
providing	O
the	O
content	O
of	O
the	O
Business	B-Protocol
Interoperability	I-Protocol
Interface	I-Protocol
of	O
an	O
organization	O
.	O
</s>
<s>
Similar	O
to	O
for	O
example	O
ARIS	O
and	O
OMG	O
's	O
MDA	B-Architecture
three	O
levels	O
are	O
used	O
:	O
</s>
<s>
In	O
MDA	B-Architecture
this	O
level	O
is	O
referred	O
to	O
as	O
CIM	O
level	O
.	O
</s>
