<<Continuing my "SOA versus" theme, I really enjoyed Daryl Plummer's
"Web Services At A Crossroads" article in Optimize magazine. In the
article Daryl, a Gartner fellow, describes the conflict between the
enterprise architects that are using web services as the platform for
Service Oriented Architecture and the Web 2.0 architects that are
using web services to build mash-ups, AJAX, and other consumer
oriented applications.

One of the points that Daryl specifically mentions is how the desire
by SOA architects to use web services for enterprise applications is
driving the increasing complexity of the WS-* set of standards. He
suggests that if you are looking for a enterprise-level
distributed-transaction environment you should look to a real
distributed transaction system rather than waiting for the WS-*
standards needed to support that level of functionality.

I can't be the first one to see the parallel to EJBs in the Java
world. When EJBs were added to Java they were designed to support this
enteprise level of functionality. And as a result there was a lot of
complexity in using EJBs. The problem with EJBs was that only a very
small percentage of applications actually needed this enterprise
functionality. And so, EJBs developed a very bad reputation as overly
complex. And an entire movement demanding a more simplistic model
emerged and the EJB model is now struggling to complete with more
simplistic POJO-based systems.

I see the same thing happening in the Web Services world. The WS-*
crowd is trying to meet the needs of enterprise SOA architects, but
they are alienating the mainstream web services developers with their
complexity. Not to mention the bickering that's going on in the
standards bodies which scares people aware by making them worry about
which standards will "win". One of the things that I like about ESBs
is that they can encapsulate some of this complexity. The bus can
abstract out some of the complexity and the services can just be services.

Let's learn from the past for once. Let's not let web services be
another EJB debacle or compatability challenged CORBA. Let simplicity
rule the standards and let the infrastructure manage the complexity.>>

You can find this blog at:

<http://www.ebizq.net/blogs/bpmblog/2006/03/soa_versus_web_20.php>

Gervas








 
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