SDO Overview (TUSCANY) edited by haleh mahbod
Page: http://cwiki.apache.org/confluence/display/TUSCANY/SDO+Overview
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h4. What is Service Data Object?
SOA creates an environment where different types of data must work together.
This makes application development complex. Service Data Object(SDO), provides
a very simple programming model that addresses this issue. The key high level
advantages of SDO are:
* Uniform access to data from heterogeneous sources which could be XML, RDB,
POJO, SOAP, etc.
* SDO provides both a static (or strongly typed) programming model and a
dynamic (or loosely typed) programming model. This provides a simple
programming model without sacrificing the dynamic model needed by tools and
frameworks.
* Provides Meta-data for easy introspection of data types
* Supports a disconnected model, whereby data can be retrieved from a data
source via [Data Access
Service|http://incubator.apache.org/tuscany/das-overview.html]. The data can be
modified by a client with change tracking, and applied back to the data source.
* SDO programming model is language neutral
Tuscany implements SDO in [Java|SDO Java] and in [C++|SDO CPP]. A [PHP version
of SDO|http://www.osoa.org/display/PHP/SOA+PHP+Homepage] is also available.
[SDO
specification|http://www.osoa.org/display/Main/Service+Data+Objects+Specifications]
can be found at the [Open Service Oriented Architecture
website|http://osoa.org].
h4. Learn more about SDO
* [What is SDO? Part One: The value of many of the facets of
SDO|http://soa.sys-con.com/read/313547.htm],Java Developer Journal, article by
Kelvin Goodson & Geoffrey Winn
* [What is SDO? Part 2 - A standardized approach to data programming
particularly well suited to SOA|http://java.sys-con.com/read/358059.htm],Java
Developer Journal, article by Kelvin Goodson & Geoffrey Winn
* Varous white papers and presentations about SDO can be found on www.osoa.org
[SDO resoruces page|http://osoa.org/display/Main/SDO+Resources].
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