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

[Michael Stiefel <development@reliablesoftware.com>]

+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
 

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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