I agree with JP Morgenthal, Ajax can collaborate with Web Services and it will
look like Web 2.0 +SOA=...
Actually, the issue here is not in technologies but in the usability pattern,
if you want.
In the Presentation layer, user experience is not bound any more to the
fragmented web pages and page flows running exceptionally in synchronous mode;
in the Business layer, there is no need for special components but only
services; in between layers, there is no need any more or traditional Web
application' facades, adapters, etc.) but just data transformation and service
subscription utilities. Data transformation is bi-directional: from/to the
Business Interfaces/User interface format to/from business services' interfaces
format. That is, Web apps shrink into data transformation facilities.
What services are used behind the point of subscription does not matter. It may
be real SOA or just Web Services. In the former case, Ajax and similar
technologies open the door to the service-oriented UI on Web platform (it is
nothing new for Java Swing or visual VB/C++/C#).
An important point here is that Business Interfaces/User interface requires a
special type of business services that encapsulate business logic implemented
in the business actions themselves. This is different business logic than
implemented in, e.g., business rules. It is intersecting to look at these
services from the SOA perspective.
- Michael
JP Morgenthal <[EMAIL PROTECTED]> wrote: You
don't need SOA for RIA. You just need a Web Service. Web Service does not
equal SOA. You can use Web Services without any forethought as to reusability.
In fact, if you read my blog entry on the matter (www.avorcor.com/morgenthal)
you will see that I had to mediate a well-designed SOA with an XML server pages
facade just to simplify the UI
__________________________________
JP Morgenthal
President & CEO
Avorcor, Inc.
46440 Benedict Drive
Suite 103
Sterling, VA 20164
(703) 444-1130 x 4: Office
(703) 554-5301 : Cell
[EMAIL PROTECTED]
__________________________________
SOA success is just a click away...
On May 11, 2007, at 4:23 PM, Ashish Deshpande wrote:
All,
I've been experimenting with building visual web applications I used frevvo
andRestlet (I work for frevvo). I've posted a couple of blog articles about
my experiences and I was wondering how other people are building visual web
applications with SOA, and particularly your experiences using Ajax. (BTW, I
used REST for my web applications but I consider it to be a simpler subset of
SOA.)
You can find much more including diagrams, examples and source code at:
How do I use my brand new WOA?
Visual REST apps: Part 1
Visual REST apps: Part 2
I'd be very interested in your thoughts: is Ajax + SOA = RIA (Rich Internet
Application) ?
Thx,
-Ashish
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