[seek-dev] coming up to speed on Ptolemy

Mon Jun 30 21:35:02 PDT 2003

Hi Amy: 

Welcome to the party!
On the SEEK side, Chad and Matt (and others) are the first addresses I 
think on experiences with Ptolemy. Chad has built some EML plug-in /
Ptolemy actor that should be available in the SEEK CVS repository.

I'm also cc-ing the developers from the SciDAC/SDM project, where we
work on a scientific workflow system based on Ptolemy.
You may want to register for that list as well:
	https://lists.sdsc.edu/mailman/listinfo.cgi/sdm-dev
It has also Ptolemy related traffic. The main gurus on this side are
Zhengang from NCSU and Ilkay here from SDSC (check the archive for
email addresses).

As to BPEL4WS: as part of the SciDAC project several of us looked at
what's out there. At this point the business workflow standards don't
seem to cut it for us. But it would be interesting to extend Ptolemy's 
pipeline oriented way of modeling workflows toa more control-flow
oriented IF THAT IS NEEDED. 

If I remember right, some of the AP&M action items was to get Ptolemy
ready as a workflow design tool. Once we have a bunch of sample
workflows we can see what is needed beyond Ptolemy's current
capabilities.

Note that from the SciDAC project we're having a demo in a few days at
the SSSDBM conference. 

My hope is that SEEK and SciDAC can stay compatible wrt Ptolemy
extensions...

Bertram

>>>>> "AS" == Amy Sundermier <Amy.Sundermier at asu.edu> writes:
AS> 
AS> Hi everybody,
AS> I work at ASU and will be working on model integration.  I want to join your
AS> party.  :)
AS> 
AS> I have been reviewing the Ptolemy system to understand its architecture and
AS> characteristics and limitations.
AS> 
AS> Has anyone put together a document to describe the tradeoffs and limitations
AS> of using this system yet?  That would be very helpful to me.  For example,
AS> it appears to have many types of computational models but it seems to me the
AS> process network is the most useful for distributed software component
AS> integration in the way we're (ASU) conceptualizing it.  Has anyone done an
AS> analysis that I can get a copy of?
AS> 
AS> Are there particular parts of the system you are focused on using?
AS> 
AS> I am also interested in looking at the language for web services BPEL4WS.
AS> Has that been considered as a possible alternative to Ptolemy?
AS> 
AS> I will post my thoughts as I finish looking at both of these options
AS> (Ptolemy and BPEL4WS).  Maybe we can have some good discussions about
AS> tradeoffs.
AS> 
AS> Thanks,
AS> Amy Sundermier
AS> Center for Environmental Studies
AS> Arizona State University
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AS> <P><FONT SIZE=2 FACE="Arial">Hi everybody,</FONT>
AS> </P>
AS> 
AS> <P><FONT SIZE=2 FACE="Arial">I work at ASU and will be working on model integration.&nbsp; I want to join your party.&nbsp; :)</FONT>
AS> </P>
AS> 
AS> <P><FONT SIZE=2 FACE="Arial">I have been reviewing the Ptolemy system to understand its architecture and characteristics and limitations.</FONT>
AS> </P>
AS> 
AS> <P><FONT SIZE=2 FACE="Arial">Has anyone put together a document to describe the tradeoffs and limitations of using this system yet?&nbsp; That would be very helpful to me.&nbsp; For example, it appears to have many types of computational models but it seems to me the process network is the most useful for distributed software component integration in the way we're (ASU) conceptualizing it.&nbsp; Has anyone done an analysis that I can get a copy of?</FONT></P>
AS> 
AS> <P><FONT SIZE=2 FACE="Arial">Are there particular parts of the system you are focused on using?</FONT>
AS> </P>
AS> 
AS> <P><FONT SIZE=2 FACE="Arial">I am also interested in looking at the language for web services BPEL4WS.&nbsp; Has that been considered as a possible alternative to Ptolemy?</FONT></P>
AS> 
AS> <P><FONT SIZE=2 FACE="Arial">I will post my thoughts as I finish looking at both of these options (Ptolemy and BPEL4WS).&nbsp; Maybe we can have some good discussions about tradeoffs.</FONT></P>
AS> 
AS> <P><FONT SIZE=2 FACE="Arial">Thanks,</FONT>
AS> <BR><FONT SIZE=2 FACE="Arial">Amy Sundermier</FONT>
AS> <BR><FONT SIZE=2 FACE="Arial">Center for Environmental Studies</FONT>
AS> <BR><FONT SIZE=2 FACE="Arial">Arizona State University</FONT>
AS> </P>
AS> 
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