Chapter 5.1

The Siloed Application Environment

Abstract

Classical data architecture begins with application siloed systems. With application silos comes the recognition that data are not integrated. Management cannot look across the corporation and ask the question—“for my corporation….” Another perspective of siloed systems is that they are sometimes called “spider web systems.” In order to transition out of the world of spider web systems, the organization builds a data warehouse. The purpose of the data warehouse is to provide the corporation with integrated, bedrock data that can be relied on. The data warehouse is created by ETL technology. Another purpose of the data warehouse is to provide a place for historical data. Prior to the ...

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