RE: [wsdm] WSRF requirements for discovery

["Andrea Westerinen" <andreaw@cisco.com>]

I will be overviewing the CIM Indications model tomorrow in the second half
of the call, and it has a concept of lifecycle and alert indications.  

Just thought that I would highlight that and invite the discovery folks to
stick around for the notifications discussion (even though most of you will
anyway).

Andrea

> -----Original Message-----
> From: Tom Maguire [mailto:tmaguire@us.ibm.com] 
> Sent: Friday, May 21, 2004 8:29 AM
> To: Mark Ellison
> Cc: John DeCarlo; Vambenepe, William N; Wsdm (E-mail)
> Subject: Re: [wsdm] WSRF requirements for discovery
> 
> 
> 
> 
> 
> 
> 
> Mark Ellison <ellison@ieee.org> wrote on 05/20/2004 05:30:02 PM:
> 
> > Hi,
> >
> > After listening to the discussion today, it occurs to me that 
> > discovery
> > (discoverability?) might be usefully described in terms of
> > notifications.  This is because I think the same fundamental
> > architectural issues are at work when:
> >
> >       (1) A consumer wishes to subscribe to notifications on a given
> topic.
> >       (2) A consumer wishes to discover the existence of 
> resources for 
> > a given type
> >             (or, property list, or, attribute set, or, wsdl 
> fragment)
> >
> > If a ws-r were to emit a notification at instantiation time with a 
> > topic of "discovery", a reference to wsdl, its known epr 
> and publish 
> > within a brokered framework, then it would be possible for 
> a consumer 
> > to subscribe to a"discovery" topic (maybe a subtopic of a ws-r type 
> > would help here...).  Subject, of course, to security and access 
> > rights, etc.
> 
> +1 to standardized lifecycle events.  Certainly that would be 
> something
> that
> we could take to WSRF as a requirement.
> 
> > I am assuming that ws-n might support some mechanism for a 
> consumer to 
> > subcribe to a topic, like "discovery", and be able to 
> obtain the past
> > (unique) events on topic.  Such a list should ultimatedly 
> provide the 
> > discoverability consumer with a list of ws-r eprs, each as reported 
> > during instantiation by the ws-r itself.
> >
> > So, how might a structured "discovery" topic be worked into the ws-n
> scheme?
> >
> > Comments?
> >
> > Regards,
> >
> > Mark
> >
> >
> >
> > John DeCarlo wrote:
> >
> > >
> > > D)  Managed Resource Creation/Deletion Events.  Manageability 
> > > Consumer is there first.  As each resource is made manageable, an 
> > > event (containing the EPR in the payload) goes to the Consumer.
> > >
> > >
> >
> >
> >
> > To unsubscribe from this mailing list (and be removed from 
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> > of the OASIS TC), go to http://www.oasis-open. 
> > org/apps/org/workgroup/wsdm/members/leave_workgroup.php.
> >
> 
> T o m   M a g u i r e
> 
> STSM, On Demand Architecture
> Poughkeepsie, NY  12601
> 
> internet:                 tmaguire@us.ibm.com
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