Excerpt from A Hierarchical Approach to Information System Design The basis of an information system is data. Let us address ourselves to the problems of data complexity and complications. Figure l depicts an example of two data series typical of those that economists are accustomed to handling. One could perform all sorts of statistical Operations on the inventory series regressions, averages. Standard deviations, etc. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.

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