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Building the Unstructured Data Warehouse: Architecture, Analysis, and Design by Krish Krishnan, W. H. Inmon

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Documents can be classified in many ways. Consider an oil company. The business of the oil company can be roughly divided into the sectors of “upstream”, “mid stream”, and “downstream”. Upstream refers to the process of exploration. Mid stream refers to the process of refining and pipeline. Downstream refers to the process of distribution. Each document that belongs to the oil company can be read and classified into the general category of information that the document contains. The document can be an “upstream” document, a “mid stream” document, or a “downstream” document.

Or consider manufacturing. In manufacturing, there is the process of handling raw goods, assembly, managing work in process, finishing a product, and ...

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