See http://www-128.ibm.com/developerworks/library/specification/ws-sca/
"Service Component Architecture (SCA) is a set of specifications which describe a model for building applications and systems using a Service-Oriented Architecture. SCA extends and complements prior approaches to implementing services, and SCA builds on open standards such as Web services."
The spec was developed jointly by BEA, IBM, IONA, Oracle, SAP, Siebel, and Sybase.
Anne
> Why?
- What is SCA??Cheers
Gautham Kasinath
Masters Student
School of Computing and Information Science
Edith Cowan University
Mt. Lawley Campus
Perth
IM: [EMAIL PROTECTED], [EMAIL PROTECTED]
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The world is what it is, and we are what we are. - Maria Puzo (Godfather)-----Original Message-----
From: [email protected] [mailto: [email protected] ] On Behalf Of jeffrschneider
Sent: Sunday, December 18, 2005 9:08 PM
To: [email protected]
Subject: [service-orientated-architecture] Re: Apache & Tuscany
> JBoss is toast.
> Nope. Still the most prevalent open source app server.
>
> J2EE is dead.
> For me it was still birth.
If J2EE was still birth, that makes JBoss what? The best instance of
the still births?
> Java is moot.
> That's just crazy talk.
JP - Java hit alpha2 in november of 1995. I know because I quit
my "stable" job to do full time Java consulting that month. Java had
a nice life - and will continue to have a nice life. As languages
mature so does their ability to innovate due to legacy customer
constraints. No big deal - just how things go.
> Long live SCA.
> Why?
SCA cleans up J2EE API mistakes, it binds components and services,
introduces encapsulation for DSL's and provides a uniform data
model. Nothing is perfect, but SCA represents the innovation that
we've seen at the open source level (Spring/IoC/etc.) taken to the
next level and packaged by major vendors, enabling Very Large
customers an easy buy/support model.
> Long live Ruby.
> Now you sound like a zealous programmer that has no sense of
> reality.
Like I didnt' hear that about Java in 1996 :-)
You can continue to tell your customers to NOT use SCA or Ruby and
to find innovation in JBoss and Java 5.0. Your call.
I will tell my customers to leverage coarse grained services that
are loosely wired together, leveraging a component model containing
domain specific languages. And that they should use the most dynamic
and participative presentation and collaboration framework available
to them, regardless of the language. IMHO, failure to acknowledge
the Ruby advantage and associated movement is a mistake.
Now, many of my customers will not be able to make the
WOA/SOA/SCA/DSL transition anytime soon. That's cool.
JBoss/WebSphere/WebLogic and are just fine for stabilized
environments. More agressive shops will likely look at
Spring/Hybernate/etc. And even more aggressive shops will do
WOA/SOA/SCA/DSL. I.T. shops that do not seek advantage or innovation
will likely not seek change.
I'm glad we agreed on 'peace on earth' and 'good will to men' ;-)
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