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lder interface systems such as those using COBOL on IBM AIX, or RPG on IBM i are expensive to replace and often difficult to integrate. See how to quickly leverage these systems in an environment without rewriting or having access to the original source code. Using IBM Rational Host Access Transformation Services (HATS), create REST-based or SOAP-based Web services to call from other systems. Presenters demonstrate a customer solution that was originally written in COBOL on AIX that now uses HATS Web services. Presenters show how using the new Dojo features in HATS, teams can rapidly build a new interface without rip and replace of the old system. HATS and Dojo help dramatically reduce data entry errors, improve customer call times, and make it easier to train personnel to use the applications. The session includes demos.