A Black-Box Strategy to Migrate GUI-Based Legacy Systems to Web Services

While legacy systems are becoming incompatible with evolving web service applications, migration of legacy systems towards service-oriented computing is arousing wide concern for the purpose of salvaging the past investments on those systems. In this paper, a black-box strategy is proposed to export customized interactive functionality of legacy systems towards web services using a wrapping methodology suitable to GUI-based legacy systems. Our strategy also proposes a solution to deploy web services that consist of interoperations between user and legacy systems in a service-oriented architecture. Finally, a distributed framework that executes web services and integrates graphical user interfaces of legacy systems is presented.