<s>
The	O
Ptolemy	B-Application
Project	I-Application
is	O
an	O
ongoing	O
project	O
aimed	O
at	O
modeling	O
,	O
simulating	O
,	O
and	O
designing	O
concurrent	B-Operating_System
,	O
real-time	B-General_Concept
,	O
embedded	B-Architecture
systems	I-Architecture
.	O
</s>
<s>
The	O
focus	O
of	O
the	O
Ptolemy	B-Application
Project	I-Application
is	O
on	O
assembling	O
concurrent	B-Operating_System
components	O
.	O
</s>
<s>
The	O
Ptolemy	B-Application
Project	I-Application
is	O
conducted	O
in	O
the	O
Industrial	O
Cyber-Physical	O
Systems	O
Center	O
(	O
iCyPhy	O
)	O
in	O
the	O
Department	O
of	O
Electrical	O
Engineering	O
and	O
Computer	O
Sciences	O
of	O
the	O
University	O
of	O
California	O
at	O
Berkeley	O
,	O
and	O
is	O
directed	O
by	O
Prof	O
.	O
Edward	O
A	O
.	O
Lee	O
.	O
</s>
<s>
The	O
Kepler	O
Project	O
,	O
a	O
community-driven	O
collaboration	O
among	O
researchers	O
at	O
three	O
other	O
University	O
of	O
California	O
campuses	O
has	O
created	O
the	O
Kepler	B-Application
scientific	I-Application
workflow	I-Application
system	I-Application
which	O
is	O
based	O
on	O
Ptolemy	O
II	O
.	O
</s>
