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Information Systems Transformation by Philip Newcomb, William M. Ulrich

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Modernization technology and process

TSRI's approach to legacy system modernization permits gradual integrated steps within a model-driven modernization methodology. Each step adds to a comprehensive model-based repository of knowledge about the corporate application portfolio and guides subsequent steps in the enterprise application portfolio process. Human hands rarely or never touch the code being modernized. Automation is used whenever practical. Human decision-making is introduced only as necessary to guide automated processes. Modernization is carried out by applying rules to generate Platform-Independent Models (PIM) from legacy application source code. Source code for the modernized applications is derived from Platform-Specific Models ...

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