Author: rineholt
Date: Wed Apr 5 21:06:31 2006
New Revision: 391896
URL: http://svn.apache.org/viewcvs?rev=391896&view=rev
Log:
Provide in the first few paragraphes a better understanding why SCA is needed.
Modified:
incubator/tuscany/site/src/site/xdoc/index.xml
Modified: incubator/tuscany/site/src/site/xdoc/index.xml
URL:
http://svn.apache.org/viewcvs/incubator/tuscany/site/src/site/xdoc/index.xml?rev=391896&r1=391895&r2=391896&view=diff
==============================================================================
--- incubator/tuscany/site/src/site/xdoc/index.xml (original)
+++ incubator/tuscany/site/src/site/xdoc/index.xml Wed Apr 5 21:06:31 2006
@@ -25,40 +25,56 @@
Welcome to Apache Tuscany. The Apache Tuscany
project is currently in Incubation under the
Apache Incubator.
</p>
- <p>
- Apache Tuscany provides runtime capabilities
for applications built
- using a Service Oriented Architecture (SOA).
Tuscany provides capabilities which follow the
- Service Component Architecture specification
and the Service Data Objects specification, which
- together define a simpler, business-oriented
approach to the creation of applications and solutions
- which use a SOA.
- </p>
- <p>
- Currently, Tuscany provides separate runtime
support for the Java language and for the C++
- language. This means that you can write
service components in either the Java language or in
- the C++ language.
- </p>
- <p>
- For more information on the SOA programming
model provided
- by Tuscany, you can read:
- <ul>
- <li>
- A White Paper on Service
Component Architecture
- (SCA)
- </li>
- <li>The SCA 0.9 Assembly Model
specification</li>
- <li>
- The SCA 0.9 Client and
Implementation Model
- specification
- </li>
- <li>The SDO 2.01 specification</li>
- </ul>
- These are available on the <a
href="documentation.html">Documentation</a> page.
- You can also get a feel for what it's like to
create a program using Tuscany by trying out the
- Sample Programs that are supplied with the
Tuscany project.
+ <p>Apache Tuscany project simplifies the development of
business solutions using a service-oriented architecture (SOA).
+ It provides an implementation for Service Component
Architecture (SCA), Service Data Objects (SDO) and Relational Database Data
Access Service (RDB DAS)
+ in conjunction with other well-established
Java<sup>tm</sup> runtime environments such as Apache Axis, Apache Tomcat, and
Apache Geronimo.
</p>
+ <p>SCA provides developers with a simple model for
creating systems based on SOA and addresses infrastructure capabilities such as
transactions,
+ security and reliable messaging. Solutions developed
using SCA can be declaratively changed to alter infrastructure capabilities or
application
+ configuration properties to meet business
requirements.
+ For example, security policies or currency for one
environment may be different from those required by another environment and SCA
allows
+ these to be changed declaratively without the need
for re-implementation.
+ </p>
+ <p>
+SCA divides up the steps in building a service-oriented application into two
major parts:
+<ul>
+<li>
+The Implementation of components which provide services and consume other
services. SCA supports service implementations written using any one of many
programming languages, both including conventional object-oriented and
procedural languages such as Java<sup>tm</sup>, PHP, C ++, and also
XML-centric languages such as BPEL and XSLT, and also declarative languages
such as SQL and XQuery. SCA also supports a range of programming styles,
including asynchronous and message-oriented styles, in addition to the
synchronous call-and-return style.
+</li>
+<li>
+The Assembly of sets of components to build composite business applications
that addresses specific business requirements. This is performed by wiring
together the service implementation components.
+</li>
+</ul>
+ For more information about SCA read the white paper on Service Component
Architecture (SCA) on <a href="documentation.html">Documentation page</a>.
Tuscany provides runtime implementation of SCA in both Java and C++.
+ </p>
+ <p>SDO provides a consistent view of data regardless
of the type of data store where the data resides. It maintains history of
change in data as
+ well as referential integrity of schema. Tuscany
implements SDO in Java and C++.
+ PHP implementation of SDO is also available under
PECL at this link <script
type="text/javascript">linkNewWindow('http://pecl.php.net/package/sdo','http://pecl.php.net/package/sdo');</script>
+ To further understand the benefits of SDO please
refer to the white paper called SDO white paper on the <a
href="documentation.html">Documentation page</a>.
+ </p>
+ <p>
+RDB DAS provides a generic data access service that provides transformation
capability between SDO data graphs and relational databases and vise versa. To
further explore the benefits of DAS please refer to white paper on <a
href="documentation.html">Documentation page</a>.
+ </p>
+<p>
+You can get a feel for what it's like to create simple applications using
Tuscany by trying out the Sample Programs that are supplied with the Tuscany
project.
+ </p>
+ <p>
+The specifications for SDO and SCA can be found on the <a
href="documentation.html">Documentation page</a>:<br/>
+<ul>
+<li>
+The SCA 0.9 Assembly Model specification
+</li>
+<li>
+The SCA 0.9 Client and Implementation Model specifications - for Java and for
C++
+</li>
+<li>
+The SDO 2.01 specifications - for Java and for C++
+</li>
+</ul>
+ </p>
<p> Tuscany is very interested in getting your
comments or any feedback you may have. Please feel free
to post these on the mailing lists. Mailing
list information is available in the <a href="mail-lists.html">Project Mailing
Lists</a> section.
-
+ We look forward to your involvement in
Tuscany.
</p>
</section>
<section name="Tuscany Subprojects">
