GC18-7563-00_ETL - Information Integration Software...

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Information Integration Software Solutions March 2003 Information integration Distributed access and data consolidation By Dr. Barry Devlin IBM Software
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Information integration—Distributed access and data consolidation Page 2 Table of Contents 3 Introduction 4 IBM’s vision of integrated information 4 Alternative methods of integrating information 6 Distributed access and data consolidation 8 Comparing federation and data consolidation 11 Successfully combining federation and data consolidation approaches 12 Federation and data consolidation tools 15 Combining tool sets to solve business problems 15 Improving call center performance 15 Expanding data warehouse sources 16 Supporting a distributed network of operational systems 17 Conclusion
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Information integration—Distributed access and data consolidation Page 3 Introduction Business today increasingly demands a unified view of information. Massive amounts of data are already stored throughout the business, but in a fragmented and disintegrated manner. In order to be efficient and responsive, business users need the ability to use this data transparently, wherever and however it resides, without concern for its timeliness, consistency or security. They require real, useful information. They demand that the IT infrastructure take care of all the details of how the data can be integrated into the information they need. This demand for integration of information is not easily satisfied today. Some of the required functionality does not exist. Other enabling technology is still emerging. Available functionality is spread over many products in different technology categories. Businesses typically use the traditional integration approaches of extract, transform and load (ETL) and replication. These approaches, here called data placement or consolidation, integrate information by physically consolidating it locally in advance of using it. An emerging approach, known as distributed access or enterprise information integration (EII) enables users to obtain direct access to data in its original locations. The purpose of this white paper is to provide high-level guidance on what functionality exists in these areas, what products are available, where they play and how they work together. This is done in the context of IBM’s overall vision of information integration, which is outlined in the first section of this paper. Second, the paper describes and contrasts the two major approaches to integrating information, distributed access and data placement or consolidation, showing where one method may be preferred over the other and where they can work together. Finally, it shows how current EII, ETL and replication products fit within the information integration framework. IBM’s and partner products in these areas are introduced and positioned relative to one another. Examples show where a combi- nation of EII, ETL and replication tools is required to solve the business needs.
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