[
Lists Home |
Date Index |
Thread Index
]
> -----Original Message-----
> From: Rich Salz [mailto:rsalz@datapower.com]
> Sent: Monday, November 29, 2004 7:23 PM
> To: Dare Obasanjo
> Cc: Mark Baker; Chiusano Joseph; xml-dev@lists.xml.org
> Subject: RE: [xml-dev] Web Services/SOA (was RE: [xml-dev]
> XML 2004 weblog items?)
>
> > Or is there an 'RPC architectural style' that I am unaware of?
>
> Yes: a "method name" and calling sequence (e.g., multiple
> parameters) and return value. In SOA, you think more of
> sending XML documents around and there's only one method,
> probably POST, and some meta-data, like a URI/URL.
>
> It is admittedly kinda fuzzy-wuzzy, but that's not uncommon
> when you start talking about "architecture." :)
So SOA is RPC with a calling convention for methods? Sounds silly to me.
I like Don's four fundamentals of service orientation from
http://msdn.microsoft.com/msdnmag/issues/04/01/Indigo/default.aspx
* Boundaries are explicit
* Services are autonomous
* Services share schema and contract, not class
* Service compatibility is determined based on policy
It's basically a philosophy on how one should treat building distributed
application instead of a way to repackage yesterday's technology with
today's buzzwords so one can charge an arm and a leg for building
applications with tomorrow's toolkits.
I especially like the fact that it's quite easy to see how RESTful
applications are service oriented using those guiding principles.
--
PITHY WORDS OF WISDOM
Ade's Law: Anybody can win -- unless there happens to be a second entry.
This posting is provided "AS IS" with no warranties, and confers no
rights.
|
