[CAnet - news] Amazing SOA (Service Oriented Architecture) Demo

For more information on this item please visit my blog at 
http://green-broadband.blogspot.com/ or http://billstarnaud.blogspot.com
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[For anybody who is doing SOA or Web 2.0 development I strongly
encouragement to take a look at this web site. Lots of useful information
and SOA, Web 2.0 and Mashups - and an amazing demo to show that it is all
real. Thanks to Benoit Pirenne for this pointer. Some excerpts from the
Adobe web site -- BSA]


http://www.adobe.com/devnet/livecycle/articles/soa_gis.html

Very good article on marrying GIS with SOA; see the demo of the bike 
race at http://www.adobetourtracker.com/max/Simulator.html


The emergence of the Internet in the mid 1990s as a platform for data
distribution and the advent of structured information have revolutionized
our ability to deliver rich information to any corner of the world on
demand.  The move towards Service Oriented Architecture (SOA) infrastructure
has been essential to the development of modern distributed systems. Service
Oriented Architecture is an architectural paradigm and discipline used to
build infrastructures that enable those with needs (consumers) and those
with capabilities (providers) to interact via services though they are from
disparate domains of ownership.

The evolution of software systems over the last two decades has resulted in
a migration to a common set of design patterns that are often referred to as
Web 2.0, or the maturing of the Internet.  This migration is being enabled
and accelerated by the move to Service Oriented Architecture, also known as
SOA.  This evolution path of software systems architecture is documented in 

Many developers building geospatial applications today embrace some of the
core patterns of Web 2.0 such as the Mashup, Software as a Service, and Rich
Internet Application patterns. (These patterns are documented in the
O'Reilly book Web 2.0 Architecture Patterns, J. Governor, D. Hinchcliffe, D.
Nickull - ISBN 0596514433.)  All of these patterns rely on a fundamental
change in the software model used to architect multi-tiered systems.  This
core change is the migration to SOA as an evolution of the old Client-Server
model.  The old Client-Server model was the cornerstone of the first
iteration of the Internet (roughly 1994-2000).  It was largely implemented
by web servers and browsers with idempotent request-response message
exchange patterns. In the subsequent evolution of the Internet (2002-2007),
the model has changed and now SOA has become the de facto standard for
application architects and developers. As shown in Figure 1-2, the "server"
component of the Client-Server model has been replaced with a services tier
which enables capabilities to be consumed via the Internet, using a
standardized set of protocols and technologies, by client applications for
the benefit of the end user.

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