RE: [soa-rm] David Linthicum Says: "ESB versus Fabric.Stop It!"

["Chiusano Joseph" <chiusano_joseph@bah.com>]

What is an RA? What is the relationship between an RM and an RA? What is
the RM->RA path for SOA?

Matt also submitted last week (I believe) that we may not even need an
RA. How should that change our notion of RM, if at all?

Joe

Joseph Chiusano
Booz Allen Hamilton
Visit us online@ http://www.boozallen.com
 

> -----Original Message-----
> From: Behera, Prasanta [mailto:pbehera@visa.com] 
> Sent: Tuesday, May 24, 2005 11:58 AM
> To: Francis McCabe; Michael Stiefel
> Cc: vikas@sonoasystems.com; Chiusano Joseph; 
> soa-rm@lists.oasis-open.org
> Subject: RE: [soa-rm] David Linthicum Says: "ESB versus 
> Fabric.Stop It!"
> 
> I agree. This will be useful when we look at the RA  
> (Sessions, messages, ...) - for RM we need to focus at abstract level.
>  
> Thanks,
> /Prasanta
> 
> 
> 
> 
> 
>  -----Original Message-----
> From: 	Francis McCabe [mailto:fgm@fla.fujitsu.com] 
> Sent:	Tuesday, May 24, 2005 8:46 AM
> To:	Michael Stiefel
> Cc:	vikas@sonoasystems.com; 'Chiusano Joseph'; 
> soa-rm@lists.oasis-open.org
> Subject:	Re: [soa-rm] David Linthicum Says: "ESB versus 
> Fabric.Stop It!"
> 
> This stuff appears to be off topic for a reference model.
> 
> These layers are extremely implementation oriented; and I 
> submit, somewhat arbitrary. There is more in life than 
> sending messages!
> 
> Frank
> 
> On May 23, 2005, at 6:47 PM, Michael Stiefel wrote:
> 
> > +1
> >
> > Michael Stiefel
> >
> > At 01:31 PM 5/23/2005, Vikas Deolaliker wrote:
> >>
> >> One could potentially map the SOA levels discussed in this blog to 
> >> layers in a SOA-RM.
> >>
> >> Layer 1: Messaging/Queing with routing and transformation of 
> >> messages. The endpoints for this layer are transport endpoints.
> >>
> >> Layer 2: Mediation Layer or Brokering Layer. The endpoints to this 
> >> layer are the service endpoints. Endpoints are discovered using a 
> >> discovery protocol (like DNS).
> >>
> >> Layer 3: Session Layer. The endpoints to this are session 
> endpoints. 
> >> Session endpoints can be all on one service endpoint or multiple.
> >>
> >> Layer 4: Process Layer. This is the 
> choreography/orchestration layer 
> >> at which new services can be developed.
> >>
> >> The RM then would need to define the notion of protocol data unit 
> >> that traverses up/down and in between two of these stacks.
> >> (analogous to OSI).
> >>
> >> Thanks
> >> Vikas
> >>
> >> From: Chiusano Joseph [mailto:chiusano_joseph@bah.com]
> >> Sent: Monday, May 23, 2005 4:19 AM
> >> To: soa-rm@lists.oasis-open.org
> >> Subject: [soa-rm] David Linthicum Says: "ESB versus 
> Fabric.Stop It!"
> >>
> >> Forwarding a very interesting and pertinent piece[1] from David 
> >> Linthicum's (CTO of Grand Central) blog, titled "ESB 
> versus Fabric...
> >> Stop It!". David also discusses 6 different "levels" of 
> SOA, ranging 
> >> from simple single point-to-point SOAP messages (Level 0) 
> to SOA that 
> >> incorporates orchestration (Level 5).
> >>
> >> Joe
> >>
> >> [1] http://www.webservices.org/index.php/ws/content/view/full/63539
> >>
> >> Joseph Chiusano
> >> Booz Allen Hamilton
> >> Visit us online@ http://www.boozallen.com
> >>
> 
> 
>