IBM
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Introduction to Service Data Objects
Put simply, SDO is a framework for data application development, which includes an architecture and API. SDO does the following: Simplifies the J2EE data programming model Abstracts data in a service oriented architecture (SOA) Unifies data application development Supports and integrates XML Incorporates J2EE patterns and best practices In this introduction to the SDO framework, we will try to explain the motivation behind the SDO effort and the differences between SDO and other specifications.