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02.06.09 Modernizing Legacy Systems Using ILOG Rules  By
James Taylor
Frank DiGiovanni of Group RCI presented on their journey - a legacy modernization using ILOG Rules. Frank identified SOA, legacy migration from mainframe to SOA and how company rules complements these as his key topics. Group RCI's core problem was threefold:  
Doing this has challenges - hard to reinvent member experience, using SOA and support a web 2.0 interface. Challenges include: • Extracting 35 years of rules from 3M lines of COBOL with limited documentation. This is, of course, absolutely typical of legacy applications - they are big, important, complex and poorly documented! • Reducing costs • Managing organizational change. People get very used to the old system and its implications. For instance, "requirements" tend to become tied to the implementation and so lose their focus on the company need and become more about how to change the mainframe. • Helping people understand what a BRMS is and why SOA would be good. These can be abstract concepts and explaining, and selling them, is hard but necessary • Politics • Choosing between big bang and phased migration • ROI, justification, complexity Their goals, specifically those related to ILOG, were to create an SOA platform that can deliver an enhanced user experience across channels by combining enterprise search with company rules. Specifically: Continue reading this article. About the Author:  |
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