Questions concerning the future of the work around workflows

Wed Sep 25 00:48:25 PDT 2013

Dear André, dear all,

I've read what José Enrique answered to your message and I totally agree 
with him.
In my opinion the activity related to workflows within the IVOA through 
the GWS has to be preserved. Not only, but we have to make any effort to 
enforce contacts and common actions and initiatives between the GWS in 
IVOA and workflow related projects, those currently active like ER-flow 
as well as future projects that could be funded and approved.

Unfortunately I were not able to be active for this interop meeting; I'm 
not attending it due to a number of urgent activities that I'm 
processing in these weeks (including the review of the first year of 
ER-flow), but I count to get in touch again with you and with the other 
members of the GWS to continue what we have done in Heidelberg.

The trend for the near future in my opinion is the need to have smart 
workflows in place to process the high volume of astronomical data 
federated in the Virtual Observatory and distributed computing 
e-Infrastructures that can be used to run these workflows. For this 
reason I think that the GWS will play a key role from now on; it would 
be a real pity to disband the GWS now.

So, I strongly support the creation of an interest group and I'm 
obviously interested in participating in it if we think that this is 
useful/necessary in this phase, and in any case I support any other 
initiative aimed at continuing the workflow-related activities within 
the Virtual Observatory.

Dear André, have a nice stay in Hawaii.
Claudio

Il 25/set/2013 9:02, Jose Enrique Ruiz ha scritto:
> Hi André, all
>
> as you know, I have been quite active in last Interops with talks 
> related to the work undertaken in the WorkflowsForEver (Wf4Ever) 
> project [1][2]. In this context we have produced tools like 
> AstroTaverna plugin [3], contributed to the development of PDL for the 
> self-desciption and semantic interoperability of services, as well as 
> with implementations of PDL-clients, and started collaborations with 
> other projects like the SpanishVO, ER-Flow, and VAMDC (and I would 
> like to read in this thread what they have to say :) Though Wf4Ever 
> finishes this year, these other projects have still a way to go, as 
> many others, just as the IVOA itself that I think it should be there 
> for new workflows-related projects to come.
>
> I know SpanishVO is interested in adapting use cases for VO-discovery 
> and VO-data handling to workflows, and we will help them with our 
> AstroTaverna plugin. ER-Flow has also interest in porting VO use cases 
> to its infrastructure, and VAMDC would like to integrate its Taverna 
> plugins with ours, with PDL support. I have also being in contact with 
> HELIO project, which has developed their own internal workflows, they 
> maybe have something to say here in this mail-thread wrt. workflows in 
> the VO.
>
> Inside IVOA, I think we may reach workflows-related subjects through 
> several working groups (applications, semantics, gws, dal, kdd..), my 
> experience is that workflows do not only work with asynchronous web 
> services, but also synchronous or not web services at all (local data 
> handling). I'm convinced the data volumes to be produced soon will 
> force the next generation of VO archives to implement workflows 
> techniques (not only for techies but also for final users/astronomers) 
> With this optic, I would be in favor of creating an interest group if 
> there is critical mass for that now, or waiting for the right moment 
> inside the GWS working group.
>
> These are my 2c. though I would very much like to hear others.
> For those of you attending to the Interop these days, please have fun 
> in Hawaï :)
>
> Cheers !
>
> ---
> Jose Enrique Ruiz
> Instituto Astrofisica Andalucía - CSIC
> Glorieta de la Astronomía s/n
> 18009 Granada, Spain
> Tel: +34 958 230 618 <tel:%2B34%20958%20230%20618>
> http://amiga.iaa.es/p/67-jer.htm
>
>
> [1] http://www.wf4ever-project.org/
> [2] http://amiga.iaa.es/p/212-web-services-based-scientific-workflows.htm
> [3] http://amiga.iaa.es/p/290-astrotaverna.htm
>
> 2013/9/23 Andre Schaaff <andre.schaaff at astro.unistra.fr 
> <mailto:andre.schaaff at astro.unistra.fr>>
>
>     Hello,
>
>     During the last IVOA meeting in Heidelberg we had a session
>     dedicated to workflows.
>
>     We had interesting talks but not really time for a discussion.
>
>     A work, PDL (Parameter Description Language) leaded by Carlo Maria
>     Zwölf, has an useful application in workflows.
>
>     An IVOA Note was also published.
>
>     A few open questions : do we need to go further in this domain ?
>     if yes what do you need (in the scope of the GWS Working Group, in
>     other WG ?) ? if not do you mean that this topic is not really in
>     the scope of the IVOA ?
>
>     All remarks welcome.
>
>     I will make a summary of the answers during the next IVOA meeting
>     in Hawaii.
>
>     Thanks for any input.
>
>     André
>
>

-- 
Claudio Vuerli
INAF-Osservatorio Astronomico di Trieste
Via G.B. Tiepolo 11
34143 Trieste - Italy
Tel: +39 040 3199 186
Fax: +39 040 309418
e-mail: vuerli at oats.inaf.it
skype: claudio_vuerli

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