Michael,
As your email sat in front of me a little longer, I began to think
that there is perhaps an SOA pattern there that is a Business Service
Accessor. Since a service should be able to have many consumers, we
can begin to classify the consumers and develop a generalized pattern
(Business Service Accessor) which enables interface negotiation and
simplify the business service interface.
JP
__________________________________
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 18, 2007, at 4:12 PM, Michael Poulin wrote:
I have question and a statement.
Q: What does mean "the browser, by means of Ajax, becomes the
orchestrator of services"? Ajax does not orchestrate anything but
update the dispalyed elements (including data), neither in client
nor in service streming pattern...
S: I have obviously found that the Business Interface and User
Experience model have different logic than the Business Service and
we cannot simly say that it is just a Business Service with (or w/
o) a UI. So, this leads to the recognition of the Business
Interface service- a sort of lightweight Business Services
oriented to the business human user (user experience requirements).
Did anybody find anything similar to this?
- Michael
Ashish Deshpande <[EMAIL PROTECTED]> wrote:
But, you wouldn't do these transactional (or orchestration) tasks
from the RIA (the
browser), would you? Are you suggesting that the browser becomes
not just the interface
for some app that orchestrates the services (which is itself a
service), but that the browser,
by means of Ajax, becomes the orchestrator of services? If that's
the case, it would worry
me. If not, then I don't understand the comment – I would expect
the transactional update
to itself be a service and the RIA is simply an interface to this
service, which then does boil
down to a CRUD operation on a document (the input message for this
orchestrator
service).
Thx,
-Ashish
--- In [email protected], JP Morgenthal
<[EMAIL PROTECTED]> wrote:
>
> From my experience, manipulating a CRUD layer from a RIA is simple.
> The more difficult aspect, especially in a mashup, is perform ing
> transactional tasks across this CRUD layer. For example, if you need
> to update two systems simultaneously, then, today, the model falls
> apart unless you own the entire infrastructure and can generate the
> transaction inside the CRUD layer.
> __________________________________
> 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 14, 2007, at 7:09 AM, Ashish Deshpande wrote:
>
> > --- In [email protected], Michael
> > Poulin <m3poulin@>
> > wrote:
> > >
> > > 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.
> >
> > Exactly – most real web applications boil down to CRUD operations
> > on documents. And
> > web services tend to expose these operations on documents or
> > combinations thereof (a
> > business process or service). What's missing is an easy way to
> > interact with these
> > documents using Rich Internet Applications (RIAs). That's where
> > Ajax comes in – it puts a
> > "face" on SOA and makes it possible to create complex, visual,
> > browser-based applications
> > by mashing up web services on your network. Just imagine
> > replicating the mashup
> > phenomenon within your company – even just within the IT
department.
> >
[snip]
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