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Subject: RE: [soa-rm] David Linthicum Says: "ESB versus Fabric.Stop It!"
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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] 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 Joseph Chiusano Booz Allen Hamilton Visit us online@ http://www.boozallen.com |
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