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<p>A legacy information system (LIS) represents a massive, long-term business investment. Unfortunately, such systems are often brittle, slow, and nonextensible. Capturing legacy system data in a way that can support organizations into the future is an important but relatively new research area. The authors offer an overview of existing research and present two promising methodologies for LIS migration.</p>
Jesús Bisbal, Deirdre Lawless, Bing Wu, Jane Grimson, "Legacy Information Systems: Issues and Directions", IEEE Software, vol. 16, no. , pp. 103-111, September/October 1999, doi:10.1109/52.795108
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