Migrating a legacy system by inferring context-sensitive business rules from legacy source code
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United States of America Patent
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Jun 12, 2018
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app pub date -
May 20, 2016
filing date -
Oct 10, 2013
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Abstract
A method and associated systems automatically convert source code of a legacy computer program into a target application by generating an intermediary, context-sensitive, business-process model that represents logic of the legacy system. A set of business rules are inferred from the source code. Each rule is modified by a first generation of additional conditions inferred from context of the source code and of the rule. The rule continues to be further refined by successive generations of context-dependent conditions, identifying each generation of conditions from the context of the preceding generation. This procedure repeats until no more levels of context can be identified. The rule is then imported into the business-process model as a logical data structure. Logic represented by the resulting model is used to generate source code of the target application.
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