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Towards a holistic approach to redesigning legacy applications for the Web with UWAT+

Web applications design methodologies hold the promise of engineering high-quality and long-lived Web systems and rich Internet applications. However, many such methodologies focus solely on green-field development, and do not properly address the situation of leveraging the value locked in legacy systems. This paper proposes a holistic approach to redesigning legacy applications for the Web using the ubiquitous Web applications design framework (UWA) and an extended version of its transaction design model (UWAT+). The approach blends design recovery technologies for capturing the know-how embedded in the legacy application with forward design methods particularly well suited for Web-based systems