Using logical data models for understanding and transforming legacy business applications.(Technical Forum)

From: IBM Systems Journal | Date: July 1, 2006| Author: Chandra, Satish; de Vries, Jackie; Field, John; Hess, Howard; Kalidasan, Manivannan; Nieuwerth, Frans; Raghavan, Komondoor V.; Ramalingam, Ganesan; Xue, Justin | Copyright information

Show me your flowchart and conceal your tables, and I shall continue to be mystified. Show me your tables, and I won't usually need your flowchart; it'll be obvious.

Frederick Brooks, The Mythical Man-Month

Modifying a legacy application is typically an expensive and time-consuming process, even when the required modifications are conceptually very simple. We argue that this problem can be ameliorated by adopting an approach in which logical data models of a l...

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