[Pgi-wg] PGI Execution Service teleconference today Wednesday 06 May 2009 at 16h CEST

[David Wallom]

Hi Etienne,

> New title of the GES document
> -----------------------------
> I propose 'PGI Execution Service'.
I would be very nervous about, it would possibly give out the wrong
impression, we are profiling, not totally new specs.

> 
> 
> States and Transitions Model
> ----------------------------
> A software service can easily publish the list of its states and the
> authorized transitions between states.  A software client can easily
> read them.
> 
> But beyond the syntax, the transitions contain SEMANTICS :
> -  Human software engineers can describe (with some work and review)
> these semantics for understanding by human software engineers,
> -  But I am afraid that it is very difficult to describe these semantics
> for understanding by a computer software.  Therefore, I am afraid that a
> software client can NOT guess how to adequately USE the listed
> authorized transitions.
> 
> So, I advise that we agree on the largest possible list of states and
> transitions, with the semantics of their transitions.
> -  That will define PGI-compliance.
> -  Any further refinement of states will be accepted ONLY for logging
> purposes, but any further transition will be completely optional and NOT
> supported by PGI.
Agreed.

David
> 
> Please study this issue, make your own mind, and express your position.
> 
> 
> Best regards.
> 
> -----------------------------------------------------
> Etienne URBAH         LAL, Univ Paris-Sud, IN2P3/CNRS
>                        Bat 200   91898 ORSAY    France
> Tel: +33 1 64 46 84 87      Skype: etienne.urbah
> Mob: +33 6 22 30 53 27      mailto:urbah at lal.in2p3.fr
> -----------------------------------------------------
> 
> 
> On Tue, 05 May 2009, Moreno Marzolla wrote:
>> Dear all,
>> 
>> the next PGI teleconference will be held tomorrow, wednesday may 6th
>> at 16:00 CET (duration: 1 hour).
>> 
>> Call-in details as follow:
>> via Skype call +9900827049931906 (free of charge) ordinary phone numbers
>> (local rates) with the 9931906 conference number:
>> 
>> Austria 0820 401 15470
>> Belgium 0703 57 134
>> France 0826 109 071
>> Germany +49 (0) 180 500 9527
>> Switzerland 0848 560 397
>> 
>> Agenda (please feel free to suggest additional items):
>> 
>> 1) Whether http://forge.ogf.org/sf/go/doc15615?nav=1 contains
>> information which should be included in the requirements documents, as
>> suggested by Etienne;
>> 
>> 2) Any final issues with the requirements document, especially with the
>> state model as discussed last time; hopefully this item will be
>> discussed very quickly;
>> 
>> 3) How the requirements can be mapped into an actual implementation
>> 
>> Moreno.
>> 
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