On 23/01/07, Selwyn Akintola <[EMAIL PROTECTED]> wrote:
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> Back in November as part of my MSc. research I posed the
> question "What is SOA?". The objective was to derive a definition of
> SOA that I could use to inform the rest of my studied. Since then I
> have received approximately 50 definitions of SOA from various
> sources including from members of this group. First off let me thank
> you all for the valuable and insightful input. When I asked the
> question I also committed to being my definition of SOA back to this
> group. Her it goes – SOA in less than 100 words-
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> "SOA is a business centric software design paradigm characterised by
This bit....
> the utilisation of well defined standards and protocols to create
> services and compose applications from services. SOA mandates that
> services are loosely coupled and communicate through the exchange of
> messages thereby allowing resource sharing and reuse.
> Interoperability and platform independence allow the composition of
> applications from services created using heterogeneous resources and
> hosted on heterogeneous technology platforms. SOA is a long term
Is contradicted by this bit....
> organization wide cross functional collaborative activity whose ROI
> will be achieved by service reuse and efficiencies gained by better
> alignment IT with business."
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Apart from "Just take it from the SOA RM" I'd be inclined to say that
what you talk about is SOD IT for most of the 100 words and then throw
in the SOA bit at the end. What you've talked about is the software
fufilment of an architecture which concentrates on new technology
builds. If SOA is just that then its going to be just as successful
as all the other distributed re-use solutions over the last 20 years.
> Please fill free to comment and critically review.
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> I am now looking at SOA adoption rates, SOA benefits realization
> experiences and the relationship between the semantic web (web 2 or 3
> or whatever it is now) and SOA.
Contrast SOD IT adoption rates (pretty high) and true SOA adoption
rates (very low). Most benefits cases I've seen so far have
concentrated on near term development savings not TCO.
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> Once again thank you for the input.
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> Selwyn Akintola
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