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Posted to user@tuscany.apache.org by va...@gmail.com on 2008/04/18 20:49:27 UTC
Whats is the difference between SCA and J2EE specifications?
Hi there,
I am new to SCA stuff. I am not able to understand why we need SCA
specification as we already have J2EE specifications with which we can
create services and deploy them. More over to my knowledge we have Spring
frame work etc..
Why are we going for SCA.
What are the substantial differences that made us to adopt SCA?
Thanks in advance.
Cheers,
Satya
Re: Whats is the difference between SCA and J2EE specifications?
Posted by va...@gmail.com.
Hi Chang,
Thank you very much for reply..
On Fri, Apr 18, 2008 at 3:03 PM, Yee-Kang Chang <ye...@ca.ibm.com> wrote:
> Hi Satya
>
> From [1],
>
> "Java Enterprise Edition (Java EE) is the standard for Java-based
> enterprise applications today. While it offers a rich set of technologies,
> it does not define important concepts that are inherently required in
> service oriented architectures such as
> - Extensibility of component implementation technologies
> - Extensibility of transport and protocol abstractions
> - a notion of cross-application assembly and configuration
>
> The Service Component Architecture on the other hand provides a
> standardized but extensible assembly language and methodology that can be
> layered on top of existing component models and runtimes."
>
> Other useful information (on this subject) is available at
> http://osoa.org/display/Main/SCA+Resources and a good introductory article
> is [2].
>
> Hope this helps.
>
> [1] http://osoa.org/pages/viewpage.action?pageId=3980
> [2] http://www.davidchappell.com/articles/Introducing_SCA.pdf
>
> ---
>
> Hi there,
>
> I am new to SCA stuff. I am not able to understand why we need SCA
> specification as we already have J2EE specifications with which we can
> create services and deploy them. More over to my knowledge we have Spring
> frame work etc..
>
> Why are we going for SCA.
>
> What are the substantial differences that made us to adopt SCA?
>
> Thanks in advance.
>
> Cheers,
> Satya
>
Re: Whats is the difference between SCA and J2EE specifications?
Posted by Yee-Kang Chang <ye...@ca.ibm.com>.
Hi Satya
>From [1],
"Java Enterprise Edition (Java EE) is the standard for Java-based
enterprise applications today. While it offers a rich set of technologies,
it does not define important concepts that are inherently required in
service oriented architectures such as
- Extensibility of component implementation technologies
- Extensibility of transport and protocol abstractions
- a notion of cross-application assembly and configuration
The Service Component Architecture on the other hand provides a
standardized but extensible assembly language and methodology that can be
layered on top of existing component models and runtimes."
Other useful information (on this subject) is available at
http://osoa.org/display/Main/SCA+Resources and a good introductory article
is [2].
Hope this helps.
[1] http://osoa.org/pages/viewpage.action?pageId=3980
[2] http://www.davidchappell.com/articles/Introducing_SCA.pdf
---
Hi there,
I am new to SCA stuff. I am not able to understand why we need SCA
specification as we already have J2EE specifications with which we can
create services and deploy them. More over to my knowledge we have Spring
frame work etc..
Why are we going for SCA.
What are the substantial differences that made us to adopt SCA?
Thanks in advance.
Cheers,
Satya